Peanut Butter Cupcake Bliss: A Reese's Dream Come True!

Ingredients

• 1 ½ cups (192g) all-purpose flour
• ¾ cup (75g) unsweetened cocoa powder
• 1 ½ teaspoons baking soda
• ¾ teaspoon baking powder
• ¾ teaspoon salt
• 1 ½ cups (300g) granulated sugar
• ¾ cup (180ml) vegetable oil
• 1 ½ teaspoons vanilla extract
• 1 ½ cups (360ml) buttermilk
• 2 large eggs
• ¾ cup (180ml) boiling water
• 1 cup (226g) unsalted butter, softened
• 1 cup (255g) creamy peanut butter (e.g., Skippy or Jif)
• 4 cups (480g) powdered sugar, sifted
• ½ cup (120ml) heavy cream
• 1 teaspoon vanilla extract
• Pinch of salt
• Mini Reese's Peanut Butter Cups, halved (optional)
• Chopped peanuts (optional)
• Chocolate sprinkles (optional)