INGREDIENTS
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Cake
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3/4 cups flour
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3/4 cups sugar
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1/4 cup + 2 tbsp. cocoa powder
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3/4 tsp baking soda
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1/2 tsp baking powder
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1/2 tsp salt
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1/8 cup vegetable oil
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1/4 cup + 2 tbsp buttermilk
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1/4 cup + 2 tbsp cup hot coffee
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1 eggs, beaten in a small bowl
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Salted Caramel Buttercream Frosting
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3 egg whites
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1/2 cup plus 1 tbsp sugar
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1/2 pound butter, cold and cut into cubes
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3/4 tsp vanilla
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1 1/2 cups caramel sauce
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coarse sea salt