INGREDIENTS
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3/4 cup all-purpose flour
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1/2 cup unsweetened cocoa powder
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3/4 cup granulated sugar
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1/2 cup packed light-brown sugar
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1/4 tsp salt
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10 Tbsp unsalted butter, melted
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2 large eggs
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1 large egg yolk
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1 tsp vanilla extract
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3 Tbsp butter
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3 Tbsp packed light-brown sugar
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2 Tbsp milk
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1/3 cup dulce de leche
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1/4 tsp vanilla extract
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1 1/4 cups powdered sugar, sifted
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1/2 cup chopped, lightly salted peanuts