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Back from exile: Our enduring love-hate relationship with butter

Libby Copeland

Culinary fable: The story of butter says much about our relationship with food.
Culinary fable: The story of butter says much about our relationship with food.Deb Lindsey/The Washington Post

Have you ever eaten butter by the spoon? Butter without toast to prop it up or eggs to fry in it - butter for its own tangy, full-flavoured, exquisite sake?

Elaine Khosrova does this, not infrequently. She warms a variety of types to room temperature, gets a glass of water to clear her palate between rounds and pries delicately at her subjects with scientific curiosity, observing how the different textures yield to her knife.

Seven types of butter are in front of her today, made from cow, sheep and goat cream, ranging from a sunny gold to a soft, bridal white.

'I never gave up on butter,' Elaine Khosrova says.
'I never gave up on butter,' Elaine Khosrova says.Yana Paskova/The Washington Post
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"You see how totally cohesive this is?" she says, prying at the first and mildest sample, a sweet cow butter made in New Zealand by a brand called Anchor. She slides a slab of the thick, pale yellow Anchor onto her spoon.

The author of Butter: A Rich History, Khosrova has worked as a pastry chef, at a restaurant trade journal, in a magazine test kitchen and as the editor of a cheese magazine, and she has researched the history of butter going back to the Stone Age.

The resident of Hudson Valley, New York, has made it her job to know the differences between conventional and grass-fed, between sweet and cultured (fermented with live cultures).

'You really want it to dissolve as slowly as possible ... You're trying to almost smell from the back of your throat.'

She can explain how tender springtime grass creates butter that's more yellow (it's from the beta carotene in the plants), and, when she's tasting, pick out the diacetyl (that quintessential buttery flavour) and the lactones (they impart a sweetness, she says). She is, in short, a butter savant in a country coming around to butter again.

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"It's been downtrodden for so long, between the margarine wars and the diet wars," says Khosrova. Even in the '80s, when "fat was so taboo", she says, "I never gave up on butter".

How, precisely, do you taste-test butter? It turns out it's much like tasting wine, only ... thicker. Khosrova lifts the spoon, sniffs and slides it into her mouth, the spoon clanking against her teeth.

Tasting butter is like tasting wine, only ... thicker.
Tasting butter is like tasting wine, only ... thicker. Yana Paskova/The Washington Post

"I try to kind of keep it in the front of my mouth," she says stickily. "You really want it to dissolve as slowly as possible ... You're trying to almost smell from the back of your throat."

Between the initial saltiness and the full-flavoured fattiness that coats the tongue and makes everything else seem like a distant dream, Khosrova's palate catches the butter's "terroir". It has "almost, like, a green vegetable quality," she says. "It's so fleeting. It's there and then it's gone."

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The butter resurgence

The release of Khosrova's book is timely. In recent years, countless headlines have declared butter "back", amid some science suggesting we may have overrated its health dangers. People are putting butter in their coffee, and the demand for "real food" is pervasive enough that in 2015, McDonald's swapped out margarine for butter in its Egg McMuffin.

Butter's story is a very American story, because the arc of its vilification and subsequent redemption is a parable for how we get food wrong time and again. We alternately demonise and idealise individual ingredients - not just butter but also sugar, caffeine, red wine and supposed miracle foods - and in doing so, we miss the big picture.

Even now, at butter's supposed moment of glory, many nutritional scientists worry that the pendulum may be swinging too far in its direction. American food trends are hopelessly reminiscent of Newton's third law, says David Katz, founding director of the Yale-Griffin Prevention Research Centre: "For every boneheaded action, there's an opposite and equally boneheaded reaction."

A long history

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But before we get to all that, it helps to go back to the beginning. Khosrova writes that butter is believed to hark back to the neolithic era. While the exact circumstances of its discovery are unknown, she imagines a herdsman storing milk inside an animal skin. Over the course of many hours, the milk is ripened by bacteria, chilled and agitated by a bumpy ride, causing delicious, golden butter flakes to form, and delighting the herdsman.

Over time, Khosrova says, butter became not just beloved but revered. In ancient Sumeria, people brought butter offerings to a temple to celebrate the union of a fertility goddess with a mythological dairy shepherd. The Vedic Aryans filled their sacred texts with references to butter ("waves of butter flow like gazelles before the hunter", went one hymn), while Tibetan Buddhist monks made sacred butter sculptures for centuries, and still do.

Khosrova says butter was seen as holy by many people in part because they didn't understand how it formed. If things like temperature or fat content weren't right, butter wouldn't emerge at all. Its appearance, therefore, was capricious and special - proof of the goodness of the universe.

"It was really valuable, too," Khosrova says. "It tasted delicious, it was used as a medicine, it was used for waterproofing."

By the 16th century, buttermaking was well established as women's domain, but it eventually went male and mechanical during the Industrial Revolution, marked by inventions such as the centrifugal cream separator, and the rise of commercial creameries with big equipment. By 1887, the annual report of the Nebraska Dairymen's Association was bidding a florid goodbye to the "sound dairymaid", with her "full, rounded arm" and "sweet voice". Not too long after that, butter began its decline.

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Recent controversies

The story of butter's shifting fortunes over the past century is complex and messy, featuring a sharp-elbowed war between butter and margarine and changing scientific wisdom over matters such as saturated fat and trans fats.

Once upon a time, Americans ate butter unapologetically. In the early 1900s, they consumed more than eight kilograms of butter per person per year, according to data from the US Department of Agriculture. Margarine, invented in 1869 and cheaper than butter, was attacked early on by the dairy industry and subjected to all sorts of regulations. But margarine's fortunes rose over time, assisted by scarce butter supplies during World War II and concerns over the saturated fat in butter, and it surpassed butter in popularity during the 1950s.

More recently, as the health impact of artificial trans fats prevalent in some forms of margarine have come to light, as our interest in more "natural" products has grown, and as sugar has taken its place as the most hated of foodstuffs, butter has come to be revered in many circles. Butter consumption surpassed margarine's in 2005, and as of 2014, the average American was consuming 2½ kilograms per year - a 40-year high, though nowhere near where it once was.

And in recent years, research has prompted debates over just how saturated fats affect the body. But many nutritional experts say butter is, at best, a neutral force in the diet and recommend moderation; if we went overboard in demonising it, neither should we lionise it. "The type of fat we eat is very important, and an optimally healthy diet will be low in butter," emails Harvard doctor and nutritionist Walter Willett.

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Willett says butter is clearly not as healthful as certain kinds of oil, such as olive, soybean and canola. But on the other hand, replacing butter with carbohydrates doesn't constitute an improvement as far as risk of cardiovascular disease. In other words, if you cut back on butter, sub in olive oil, rather than low-fat cookies.

Putting butter to the taste test

Khosrova is a fan of moderation when it comes to butter, if only because her beloved condiment is so flavourful that a little goes a long way. But on tasting days, moderation is put on hold.

The seven salted butters on display come from six countries - France, New Zealand, Ireland, Canada, England and US - the priciest being the $US24 ($31) sheep butter by Haverton Hill Creamery in California, which arrives in what looks like a small ice-cream tub.

There's a butter from Stirling Creamery in Ontario made from whey cream (a byproduct of the cheese-making process), which has what Khosrova calls an "umami cheesiness". There's a cultured butter from Vermont Creamery that's a startling 86 per cent butterfat, rather than the 80 per cent of most of the others - it's at once milky and tangy. The French cultured butter from Isigny Ste-Mere, churned in a traditional style, has a wonderful balance and a satisfying fatty fullness at the end.

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There is so much to know about butter, such as how cows convert plant matter into fatty milk, and why some breeds make better-tasting butter, and what precise combination of elements makes Land O'Lakes taste, Khosrova says, "like my childhood".

For her book Khosrova travelled to Bhutan, Ireland, Wisconsin and Iowa; she talked to an animal science expert and an expert in lactation physiology. Abundant milk-producing Holsteins are popular in the dairy world, Khosrova says, but when she makes her own butter, which is often, she uses Jersey cream she gets from a shop about 20 minutes from her home in New York's Hudson Valley. (However, the gold standard, in her opinion, is the "fabulous cream" of Guernsey cows, which is "really hard to find.")

Unlike Khosrova, the amateur unused to eating so much butter at once finds herself slightly queasy four butters in. But she rallies at the end for the pricey sheep butter, which tastes like the strip of fat you pull off lamb chops, and for a goat butter by Delamere, which is sweet and somehow tender. It nearly brings tears to the eyes.

"That's so funny," Khosrova says. "Michael Pollan wrote about a butter that he tasted in Spain and he said it was absolutely 'poignant.' That was the word he used."

Another amateur at the tasting asks what the goat butter would pair well with, but the answer is already obvious. Clearly, a spoon.

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It's easy to make your own butter in a food processor.
It's easy to make your own butter in a food processor. Deb Lindsey/The Washington Post

Cultured butter recipe

24 tablespoons

"Churning" your own butter via a food processor is surprisingly easy; culturing it means introducing a fermenting/acidifying agent that will make the end result richer-tasting and somewhat easier to spread at a cool temperature. Baking experts say it helps produce a more tender crumb.

During the 12 to 24 hours' chilling time, the cream will be tempering, or, as Khosrova describes it, changing "the crystalline structure of its fats".

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Do not knead the final mass of butter on a wooden surface, to avoid picking up any residual odours. If you choose to add salt, keep in mind that 8 tablespoons of commercial salted butter contains about ¼ teaspoon fine salt.

You'll need an instant-read thermometer and cheesecloth.

We used a small amount of real buttermilk to act as the culturing agent in testing.

MAKE AHEAD: The cream-culture mixture needs to rest at room temperature for 16 to 24 hours, then be refrigerated for 12 to 24 hours before processing/churning. For best flavour, the cultured butter can be refrigerated in an airtight container for up to a month, or frozen for up to four months.

Adapted from Khosrova's Butter: A Rich History (Algonquin Books).

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Ingredients

⅛ teaspoon freeze-dried Flora Danica culture (available online) or buttermilk culture (may substitute ⅓ cup creme fraiche or real buttermilk; see note above)

4 cups heavy cream, preferably not ultra-pasteurised

Kosher salt (optional)

Method

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1. Combine the culture and 1 tablespoon of the cream in a food processor. Let the culture defrost for a few minutes and then work it into the cream so it's grainy. (If you're using creme fraiche, mix it well with ¼ cup of the cream.)

2. Heat the remaining cream to 24C in a saucepan on the stove top (low heat), then add it to the food processor; pulse until well incorporated. Transfer the mixture to a bowl, cover loosely with plastic wrap and let sit for 16 to 24 hours, during which time it will thicken a bit, like creme fraiche or sour cream. Then cover and refrigerate for 12 to 24 hours.

3. Just before you return the mixture to the food processor for "churning", heat the chilled mixture to about 13C by seating its bowl in a larger bowl that's filled with warm water, stirring gently all the while. This should only take a few minutes.

4. Transfer the mixture to the food processor; puree for 5 to 8 minutes, during which time the mixture will thicken further and change colour from off-white to pale yellow. (Once it starts to look pebbly, it's almost butter.)

5. After another minute, the cream will look curdled and suddenly separate into a milky liquid and small curds of yellow butter. Transfer to a fine-mesh strainer and drain the liquid (reserve it, if you wish; some people use it for baking bread and watering plants). Rinse the mass of butter curds briefly under cool water, to harden them a bit and get rid of further milky residue.

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6. Wrap the butter in a few layers of clean, slightly damp cheesecloth, then place it in a clean bowl or on a non-wooden surface (preferably marble). Knead vigorously with your hands, or slap the hunk of butter against the surface repeatedly until the butter feels creamy and dense, about 3 minutes, stopping to unwrap and work in a little salt, if desired.

The butter can be served right away, or moulded or pressed into a shape before you store it.

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