Saturday, March 23, 2019

GRAPEFRUIT CAKE

Thomas Keller's Grapefruit Cake
from Ad Hoc at Home
yields one 10 x 4-inch loaf pan or 4 small loaf pans

Cake:
2 cups all-purpose flour
1 3/4 teaspoons baking powder
1 teaspoon kosher salt
1 2/3 cups granulated sugar
2 large eggs
1 cup whole milk
3/4 cup canola oil
1 tablespoon grated ruby grapefruit zest
1 teaspoon vanilla paste or pure vanilla extract

Grapefruit Syrup:
1 cup strained fresh ruby grapefruit juice
2/3 cup granulated sugar

Grapefruit Icing:
3/4 cup powdered sugar
1 tablespoon plus 1 teaspoon fresh ruby grapefruit juice

Pre-heat your oven to 350°F. Prep your pans by coating them with a little non-stick spray or lightly oil.

Sift together the flour and baking soda and then whisk in the kosher salt. Set the mixture aside.


In the bowl of your stand mixer, using the whisk attachment, combine the eggs and sugar on medium speed for three minutes. The mixture should thicken, increase in volume and the whisk will leave a trail in the batter. Once everything looks right, beat in the milk, oil, then the zest and vanilla.

Reduce your mixer's speed to low and then beat in the flour, scraping the sides of the bowl as needed, until incorporated.

Pour the batter into your pan(s) and place on a baking sheet. Bake a single loaf for an hour (rotating once to ensure even color). Mini loafs will take roughly 40 minutes. Or until a cake tester or wooden skewer inserted into the center of the cake comes out with just a few moist crumbs clining to it.

While waiting for the cakes to bake, you can prep the grapefruit syrup.

Combine the grapefruit juice and sugar in a medium sauce pan over medium-high heat. Stir constantly until the sugar has dissolved. Bring to a boil, reduce heat to a simmer (it can boil over if left over high heat) and cook for 1 minute.




Once you pull your cakes from the oven, poke holes into the cakes with a wooden skewer. Brush your syrup over the cake, allowing it to absorb and then repeating until you've used up all the syrup. Allow the cake to cool in the pan completely before attempting to unmold.

To un-mold, lightly coat a piece of waxed or parchment paper with a little oil or nonstick spray. Cover the cake with the paper and then invert. Turn the cake right-side-up onto a serving dish.

Whisk together the powdered sugar and grapefruit juice to make a glaze. (I doubled the powdered sugar called for to make the glaze more opaque.) Drizzle the glaze diagonally across the cake, allowing it to run down the sides. Slice and serve.


Keep the cake loosely covered at room teprature for up to two days.

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