Marbled Peanut Butter and Chocolate Cupcakes - Cupcake Fanatic

Ingredients

• 1/2 stick unsalted butter
• 1 oz semi-sweet chocolate
• 1/4 cup cocoa powder
• 1 egg, room temperature
• 1/4 cup sugar
• 2 tablespoons brown sugar
• 1/2 teaspoon vanilla extract
• 1/2 cup plain Greek yogurt
• 1/4 cup, plus 2 tablespoons all purpose flour
• 1/4 teaspoon baking soda
• 1/2 teaspoon baking powder
• pinch of salt
• 1/2 cup plus 2 tablespoons all-purpose flour
• 1/3 cup peanut butter (creamy)
• 1/2 stick unsalted butter, room temperature
• 1/4 cup, plus 2 tablespoons brown sugar
• 2 tablespoons plain Greek yogurt
• 12 mini Reese’s Peanut Butter Cups
• 1/4 cup peanut butter
• 1 oz baking chocolate
• 1/4 cup heavy cream
• 1 stick unsalted butter, room temperature
• 1/3 cup chocolate peanut butter
• 3 tablespoons cocoa powder
• 3 cups powdered sugar
• 12 Reese’s Peanut Butter Cup Minis