INGREDIENTS
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1 stick butter, room temperature
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3/4 cup & 2 tbsp sugar
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2 egg whites
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3/4 cup sour cream
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1/4 cup milk
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1 tsp vanilla extract
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1 cup & 2 tbsp all purpose flour
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1/2 tsp baking soda
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1/4 tsp salt
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1/2 cup jimmies sprinkles
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2 sticks butter, softened
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1/2 cup vegetable shortening
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1 tsp vanilla extract
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3-4 cups powdered sugar
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more sprinkles, to top the cupcakes