4th of July Chocolate Cupcakes

These Red, White & Blue Chocolate Cupcakes are a fun and festive twist on a classic chocolate treat, perfect for summer celebrations, BBQs, and patriotic holidays. Each cupcake is soft, rich, and deeply chocolatey, topped with a smooth vanilla buttercream that’s swirled into a vibrant red, white, and blue design.

Despite their eye-catching look, these cupcakes are surprisingly simple to make. The batter comes together quickly, bakes into a light and moist texture, and pairs perfectly with the creamy, fluffy frosting. The tri-colour swirl adds a playful finish that makes them ideal for parties, gatherings, or any occasion where you want a dessert that stands out on the table.

Whether you’re baking for a crowd or just want something colourful and delicious, these cupcakes deliver both flavour and presentation in every bite.

Yield: 12 cupcakes
Prep Time: 20 minutes
Cook Time: 20 minutes
Total Time: 40 minutes (plus cooling time)

Ingredients

Chocolate Cupcakes

1 cup (130 g) All-purpose flour
½ cup (50 g) Unsweetened cocoa powder
1 tsp (4 g) Baking powder
½ tsp (3 g) Baking soda
¼ tsp (1.5 g) Salt
¾ cup (160 g) Granulated sugar
1 large (approx. 50 g) Egg
⅓ cup (80 ml) Neutral oil (such as vegetable or canola)
½ cup (120 ml) Milk
½ cup (120 ml) Hot water

Buttercream Base

¾ cup plus 2 tbsp (200 g) Unsalted butter, very soft
3 cups (350 g) Powdered sugar
1 tsp (5 ml) Vanilla extract

Decoration

Red gel food coloring
Blue gel food coloring

Instructions

Preheat your oven to 350°F (180°C) and line a 12-cup muffin tin with cupcake liners.

In a large bowl, whisk together the flour, cocoa powder, baking powder, baking soda, salt, and granulated sugar.

Add the egg, neutral oil, and milk in a seperate bowl.

Add to the dry ingrediants, and whisk until the batter is smooth and well combined.

Carefully stir in the hot water. The batter will be thin, but this ensures a moist texture.

Divide the batter evenly among the cupcake liners. Bake for 18–20 minutes, or until a toothpick inserted into the center comes out clean. Allow cupcakes to cool completely on a wire rack before frosting.

In a large mixing bowl, beat the very soft unsalted butter until light and fluffy.

Gradually add the powdered sugar one cup at a time, beating on low speed until incorporated, then high speed until smooth.

Mix in the vanilla extract.

Divide the buttercream into three separate bowls. Leave one bowl white. Use the gel food coloring to tint one bowl vibrant red and the other deep blue.

To achieve the tri-color swirl, place a piece of plastic wrap on the counter. Spread the three colors in side-by-side strips on the plastic wrap. Roll the plastic into a log and snip off one end.