For the Doughnuts:
- 1 cup all-purpose flour
- 1/3 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup granulated sugar
- 1/2 cup buttermilk
- 1/4 cup vegetable oil
- 1 large egg
- 1 teaspoon vanilla extract
For the Chocolate Glaze:
- 1 cup powdered sugar
- 2 tablespoons unsweetened cocoa powder
- 2–3 tablespoons milk
- 1 teaspoon vanilla extract
For the Spider Web Decoration:
- 1/4 cup white chocolate chips
- Black decorating icing (for the spider design)
- Plastic spiders (for decoration, optional)