Peanut Butter Cupcakes with Banana Pudding

Name: Peanut Butter Cupcakes with Banana Pudding
Ingredients: 1/2 cup sugar; 1/4 cup plus 1 tablespoon cornstarch; 1/4 teaspoon salt; 2 1/2 cups whole milk; 3/4 cup mashed bananas (from 2 bananas); 1 tablespoon unsalted butter; 1 teaspoon pure vanilla extract; Yellow food coloring (optional); 3 cups all-purpose flour; 1 teaspoon baking powder; 1 teaspoon salt; 1/2 teaspoon baking soda; 2 sticks unsalted butter, at room temperature; 2 cups sugar; 4 large eggs, at room temperature; 1 tablespoon pure vanilla extract; 1 cup buttermilk; 1 1/2 cups peanut butter chips; Banana chips, for topping