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Red White and Blue Cupcakes

Red white and blue cupcakes with layered vanilla batter and fluffy buttercream frosting. Finished with red, white, and blue sprinkles and patriotic stars for a festive swirled look.
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Prep Time 25 minutes
Cook Time 20 minutes
Total Time 45 minutes
Servings: 24 servings
Course: Dessert
Cuisine: American
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

Cupcakes
  • 1 white cake mix Use the box amount (typically 15.25 oz), prepared per package directions.
  • 3 eggs Large eggs.
  • 1 cup water For cake mix batter, as directed on the box.
  • 0.33 cup vegetable oil For cake mix batter, as directed on the box.
  • 1 red food coloring Tint one portion of batter until you reach a medium red color.
  • 1 blue food coloring Tint one portion of batter until you reach a medium blue color.
Buttercream Frosting
  • 1 lb unsalted butter Softened.
  • 4 cup powdered sugar Sift if clumpy for the smoothest frosting.
  • 2 tbsp heavy cream Add as needed for a pipeable consistency.
  • 1 tsp vanilla extract For flavor.
Decorations
  • 1 red, white, and blue sprinkles Use any patriotic mix.
  • 1 mini patriotic stars Edible or nonpareil-style stars.
  • 1 red and blue sanding sugar Use sparingly for extra sparkle on top.

Equipment

  • 1 sheet pan

Method
 

Bake the cupcakes
  1. Preheat the oven to 350°F (175°C). Set out a muffin pan and cupcake liners.
  2. Line a muffin pan with cupcake liners. This prevents sticking and keeps the layers neat.
  3. Prepare the cake batter according to package directions. Stop when the batter is smooth and uniform.
  4. Divide the batter into three bowls. Keep one bowl untinted for the white layer.
  5. Tint one bowl red with red food coloring and the other bowl blue with blue food coloring. Mix until the colors are even with no streaks.
  6. Layer spoonfuls of white, red, and blue batter into the cupcake liners. Aim for visible layers rather than mixing them fully.
  7. Swirl lightly with a toothpick. Create gentle ribbons of color without over-blending.
  8. Bake for 18–20 minutes at 350°F (175°C). Bake until a toothpick in the center comes out clean.
  9. Cool the cupcakes completely. Let them reach room temperature before frosting so the buttercream won’t melt.
Make frosting and decorate
  1. Beat the butter until creamy. Stop when it looks lighter in color and smoother in texture.
  2. Add powdered sugar, heavy cream, and vanilla extract. Mix on low to start, then increase until combined.
  3. Beat until fluffy. The frosting should hold shape and pipe cleanly.
  4. Pipe frosting onto cooled cupcakes. Add a smooth swirl or a ridged rosette as desired.
  5. Decorate with patriotic sprinkles, mini patriotic stars, and red and blue sanding sugar. Finish while the frosting is fresh so toppings adhere.
  6. Serve the cupcakes. Keep leftovers covered to maintain the frosting texture.

Notes

Pro tip: fully cool the cupcakes before frosting for clean swirls and stable buttercream. Store airtight at room temperature up to 2 days or in the refrigerator up to 4 days; bring to cool-room temperature before serving. Freeze unfrosted cupcakes up to 2 months (thaw overnight), but freezing frosted cupcakes is not recommended. Dietary swap: use a vegan butter and plant-based heavy cream to make a dairy-free buttercream while keeping the same frosting technique.