Soft chocolate cupcakes topped with black glaze, white chocolate spider webs, and gummy spiders. These easy Halloween cupcakes make a fun party dessert and are great to decorate with kids.
Preheat the oven to 340°F (170°C). Line a 12-cup muffin pan with cupcake liners. Set out two mixing bowls, one for the dry ingredients and one for the wet ingredients.
In one bowl, combine the all-purpose flour, granulated sugar, cocoa powder, baking soda, and salt. Mix well, breaking up any large lumps of cocoa powder.
1½ cups all-purpose flour, 1 cup granulated sugar, 1 teaspoon bicarbonate of soda, ¼ teaspoon salt, 5 tablespoons cocoa powder
In the second bowl, whisk together the warm coffee, white distilled vinegar, olive oil, vanilla extract, and egg until combined.
1 tablespoon white distilled vinegar, 1 cup coffee, ⅓ cup olive oil, 1 medium egg, 2 teaspoons vanilla extract
Pour the wet ingredients into the dry ingredients and whisk just until combined. The batter will be fairly thin; don't overmix.
Divide the batter evenly between the 12 cupcake liners, filling each about two-thirds full. An ice cream scoop works well for even portions.
Bake in the center of the preheated oven for 20 minutes. Test one cupcake by inserting a toothpick into the center. If it comes out clean, the cupcakes are done. If wet batter remains on the toothpick, bake for a few more minutes and check again.
Let the cupcakes cool in the pan for 5 minutes, then transfer them to a wire rack and allow them to cool completely before decorating.
Make the Black Glaze and White Chocolate
Sift the powdered sugar into a mixing bowl and add the black food coloring. Gradually stir in the warm water until the glaze is thick but fluid enough to coat the back of a teaspoon. If needed, add a little more water one drop at a time until you reach the right consistency.
1⅞ cups powdered icing sugar, 2-3 drops black food coloring, 1 tablespoon water
Place the white chocolate in a microwave-safe bowl. Microwave in 30-second intervals, stirring well after each interval, until completely melted and smooth.
4½ oz white chocolate
Decorate the Spider Web Cupcakes
Spoon about 1 teaspoon of black glaze over each completely cooled cupcake, spreading it so the top is covered.
Dip a toothpick into the melted white chocolate and make circles across the black glaze, beginning near the center of the cupcake and working toward the outside edge.
Starting at the smallest inner circle, drag the toothpick outward through the white chocolate circles to the edge of the cupcake. Repeat around the cupcake to create a spiderweb pattern.
12 gummy spiders
Place one gummy spider on each finished web and serve.
Notes
Let the cupcakes cool completely before decorating. If they are still warm, the glaze and white chocolate can soften and run.
Add any extra water to the black glaze one drop at a time, as the consistency can change quickly.
Gel black food coloring is useful when you want a deep color without adding too much extra liquid.
Don't overmix the cupcake batter once the wet and dry ingredients have been combined.
Melt the white chocolate gradually, stirring every 30 seconds to prevent overheating.