Video tip: Clarified butter 101 ... and a recipe

Clarified butter, the choice of many chefs, is easy to make at home

For many, clarified butter is the cooking fat of choice. It is butter from which the milk solids, water and whey proteins have been removed. The resulting butter is a beautifully clear golden liquid when melted, preferred in many recipes because it can be cooked at higher temperatures than standard butter. (The milk solids in standard butter can easily burn.)

Because it's clarified, this butter can also last longer -- the milk solids that can cause standard butter to go rancid so quickly have been removed. Of course, the milk solids also impart rich flavor, so clarified butter will not have the same depth of flavor as standard butter.


You can find clarified butter (or ghee, a type of Indian clarified butter) in many cooking stores and specialty markets, but it can be costly, and it's just as easily made at home.

To make your own clarified butter, gently melt the butter over low heat in a heavy-bottom saucepan (or slowly melt it in the microwave). As the butter melts, the milk solids will sink to the bottom and water and whey proteins will gently bubble to the top. After the water has evaporated, gently skim the whey (the dry foam) from the top of the clarified butter. Very gently pour the clarified butter into a separate container, making sure not to disturb the milk solids at the bottom. 1 cup (2 sticks) of standard butter should give you 1/2 cup to 3/4 cup clarified butter.

Cool the butter, then cover and refrigerate until needed. Voila! Now you can use it to make Thomas Keller's banana bread pudding, you can find the recipe below.

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Total time: 1 hour, 20 minutes, plus baking and several hours chilling time | Serves 24

Note: Adapted from "Ad Hoc at Home" by Thomas Keller with Dave Cruz. This can be made up to 2 days in advance. Vanilla bean paste can be found at select gourmet supply stores. The bananas can be replaced with a similar quantity of dried fruit or omitted altogether. To make clarified butter, melt butter over low heat, skim the milk solids off the top and ladle out the butter without disturbing the remaining milk solids and water at the bottom. Start with 1 cup (2 sticks) butter to get about one-half cup clarified.

    2 1/4 cups milk
    2 1/4 cups heavy cream
    1 cup sugar, divided
    1 tablespoon vanilla paste or pure vanilla extract
    8 slices of brioche or good-quality white sandwich bread, crusts removed (each slice should be 7 inches long, 3 inches wide and one-half inch thick)
    10 eggs
    3 ripe bananas
    About 1/2 cup clarified butter

1. In a large saucepan, combine the milk, cream, one-half cup of the sugar and the vanilla paste (not extract, if using) and bring to a boil, stirring to dissolve the sugar. Remove from the heat and if using vanilla extract, stir that in.

2. Toast the slices under a broiler on a baking sheet or in a toaster until both sides are golden-brown.

3. In a large bowl, lightly whisk the eggs. Whisk in the remaining one-half cup sugar. Whisk several ladles of the milk mixture into the yolk mixture, then whisk the yolk mixture back into the milk. Strain through a fine-mesh basket strainer into a bowl and cool the custard, or chill over an ice bath to room temperature.

4. Spread about one-fourth inch of the custard in the bottom of a 9-by-13-inch baking pan.

5. In a separate baking dish, place 2 slices of the bread and pour in enough of the egg mixture to cover. Soak them, turning once, for about 1 minute; do not soak too long, or they will be difficult to move. Carefully place the slices of bread crosswise in the baking pan. Repeat with two more slices so that you have one full layer of soaked bread in the bottom of the baking pan.

6. Cut the bananas in half crosswise, then cut each half lengthwise into 3 slices. Place the banana slices side by side, running lengthwise in the pan, to cover the bread. Soak the remaining 4 pieces of bread in 2 batches and lay them over the bananas. Pour the remaining egg mixture over the top.

7. Cover the bread pudding with a piece of plastic wrap and press down gently. Set aside for 20 minutes to allow the egg mixture to soak into the bread.

8. Heat the oven to 300 degrees. Bring a large saucepan of water to a simmer. Remove the plastic wrap and place a piece of parchment paper over the top of the bread pudding. Cover the pan with aluminum foil.

9. Put the baking pan in a larger pan, such as a roasting pan. Carefully pour enough hot water into the roasting pan to come about two-thirds up the sides of the baking pan. Bake until an instant-read thermometer inserted in the center of the pudding reaches 180 degrees (a knife inserted in the pudding should come out clean), up to about 2 hours, checking after the first hour. Carefully remove the baking pan from the water bath (using a turkey baster or ladle to remove some of the water from the roasting pan first will make this easier), set on a rack and cool, still covered, to room temperature. Refrigerate for at least 6 hours; it will keep up to 2 days.

10. Cut the bread pudding into 24 pieces and remove as many as desired from the pan. Trim them as necessary and scrape off any custard from the bottom of the squares.

11. Heat about one-fourth-inch of clarified butter in a large nonstick frying pan over medium-high heat. Add several pieces of the bread pudding, cut side down, without crowding. Reduce the heat to medium, and cook for 2 to 3 minutes on each side, to warm and brown the pieces. Keep warm (in a 275-degree oven) as you continue to brown the remaining pieces.

Each serving: 281 calories; 5 grams protein; 20 grams carbohydrates; 1 gram fiber; 20 grams fat; 12 grams saturated fat; 162 mg. cholesterol; 11 grams sugar; 69 mg. sodium.

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