For the Chocolate Cupcakes:
- 1 1/2 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 cup cocoa powder (unsweetened)
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup vegetable oil
- 2 large eggs
- 1 teaspoon vanilla extract
- 3/4 cup milk
- 1/2 cup hot water
For the Chocolate Frosting:
- 1 cup unsalted butter, softened
- 3 cups powdered sugar
- 1/2 cup cocoa powder
- 2–3 tablespoons milk
- 1 teaspoon vanilla extract
For the Spider Decorations:
- Black licorice laces (for the legs)
- Candy eyes
- Mini chocolate sandwich cookies (or round chocolate candies for the body)
- Black decorating gel or melted chocolate (optional)