Spooktacular Halloween Monster Eye Cupcakes with Gooey

Ingredients

• 1 ½ cups (192g) all-purpose flour
• ¾ cup (75g) unsweetened cocoa powder
• 1 ½ teaspoons baking powder
• ¾ teaspoon baking soda
• ¾ teaspoon salt
• 1 ½ cups (300g) granulated sugar
• ½ cup (120ml) vegetable oil
• 1 ½ teaspoons vanilla extract
• 1 cup (240ml) buttermilk, room temperature
• 2 large eggs, room temperature
• ¾ cup (180ml) boiling water
• 1 (3 ounce/85g) package lime-flavored gelatin
• 1 cup (240ml) boiling water
• ½ cup (120ml) cold water
• 1 cup (2 sticks/226g) unsalted butter, softened
• 3-4 cups (360-480g) powdered sugar, sifted
• 2-3 tablespoons milk or heavy cream
• 1 teaspoon vanilla extract
• Green food coloring (gel food coloring recommended for vibrancy)
• 12 large candy eyeballs