INGREDIENTS
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10 graham crackers, crushed
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3/4 cup plus 3 tablespoons granulated sugar, divided
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n/a
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1/3 cup plus 4 tablespoons cocoa powder, divided
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14 tablespoons (1 3/4 sticks) unsalted butter, melted, divided
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4 large eggs
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1 teaspoon vanilla extract
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1/2 cup all-purpose flour
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2 cups whole milk
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1/2 teaspoon cream of tartar
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1 1/2 cups heavy cream
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2 tablespoons powdered sugar