Best Zombie Brain Cupcakes Recipe - How To Make Zombie Brain Cupcakes

Ingredients

• 1 1/4 c. (150 g.) all-purpose flour
• 1 c. (200 g.) granulated sugar
• 1/2 c. (40 g.) unsweetened cocoa powder
• 1 tsp. baking powder
• 1/2 tsp. baking soda
• 1/2 tsp. kosher salt
• 1/2 c. (120 ml.) buttermilk or whole milk
• 1/4 c. neutral oil
• 1 large egg, beaten
• 1/2 tsp. pure vanilla extract
• 1/4 c. boiling water
• 4 c. (455 g.) powdered sugar, sifted
• 1 1/2 c. (3 sticks) unsalted butter, room temperature
• 1 tsp. pure vanilla extract
• 1/4 tsp. kosher salt
• 2 to 3 drops (or more) neon green liquid food coloring
• Red decorating gel, for drizzling