Reese's Peanut Butter Cup Cupcakes

Ingredients

• 1 package chocolate cake mix (regular size)
• 1-1/4 cups water
• 1/2 cup peanut butter
• 1/3 cup canola oil
• 3 large eggs, room temperature
• 24 miniature peanut butter cups
• FROSTING:
• 6 ounces semisweet chocolate, chopped
• 2/3 cup heavy whipping cream
• 1/3 cup peanut butter
• Additional miniature peanut butter cups, chopped