INGREDIENTS
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2 cups all-purpose flour1/2 cup unsweetened cocoa powder1/4 cup (packed) brown sugar2 teaspoons baking powder1 teaspoon baking soda1 teaspoon kosher salt3 large eggs, separated2 cups buttermilk1/2 cup olive oil
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1 teaspoon vanilla extract
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t6 oz. bittersweet (at least 60% cacao-finely chopped), Oil spray, Unsalted butter & warm pure maple syrup.