Marble Cupcakes | Blue Flame Kitchen

Ingredients

• 3 tbsp granulated sugar
• 3 tbsp milk (2%)
• 1 1/2 ounces unsweetened chocolate, chopped
• 1/4 tsp baking soda
• 2 cups all-purpose flour
• 2 tsp baking powder
• 1/2 tsp salt
• 1/3 cup salted butter
• 3/4 cup granulated sugar
• 2 egg whites
• 2/3 cup milk (2%)
• 1 tsp vanilla