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Perfect Red White and Blue Opera Cake Recipe with Coffee Buttercream

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A festive and elegant opera cake featuring almond joconde sponge layers colored red, white, and blue, filled with a rich coffee buttercream and topped with a glossy chocolate ganache glaze. Perfect for patriotic occasions and celebrations.

Ingredients

Scale
  • 3 large eggs, room temperature
  • ¾ cup granulated sugar (100g)
  • 1 cup almond flour (100g)
  • ¼ cup all-purpose flour (30g)
  • 2 tbsp unsalted butter, melted and cooled (30g)
  • Red and blue gel food coloring or natural fruit purees (beet juice for red, blueberry puree for blue)
  • 1 cup unsalted butter, softened (200g)
  • ¾ cup powdered sugar, sifted (150g)
  • 2 tbsp strong espresso, cooled
  • 1 tsp vanilla extract
  • Pinch of salt
  • 3.5 oz dark chocolate (70% cocoa recommended) (100g)
  • ⅓ cup + 1 tbsp heavy cream (100ml)
  • 1 tbsp unsalted butter

Instructions

  1. Preheat oven to 425°F (220°C). Line two 9×13 inch baking sheet pans with parchment paper.
  2. In a large bowl, whisk eggs and sugar until pale and fluffy (3-4 minutes with electric mixer).
  3. Sift almond flour and all-purpose flour together, then gently fold into egg mixture with a spatula.
  4. Carefully fold in cooled melted butter in small batches.
  5. Divide batter evenly into three bowls. Leave one plain (white), add red gel food coloring to second, blue to third. Mix gently until evenly colored.
  6. Pour each colored batter into separate pans or bake one after another if using one pan.
  7. Bake each layer for 5-7 minutes or until sponge springs back lightly when touched. Cool on racks.
  8. Beat softened butter until creamy (3-5 minutes). Gradually add sifted powdered sugar, beating on low then high speed until smooth.
  9. Slowly add cooled espresso, vanilla extract, and pinch of salt. Beat until light and fluffy. Adjust sweetness or coffee intensity as desired.
  10. Trim cooled sponge layers for clean edges. Place red layer on serving board, spread thin layer of coffee buttercream on top.
  11. Add white layer and spread buttercream. Top with blue layer and cover entire cake with thin crumb coat of buttercream. Refrigerate 15 minutes to set.
  12. Heat heavy cream in small saucepan until just simmering. Pour over chopped dark chocolate in bowl. Let sit 1-2 minutes, then stir gently until smooth.
  13. Stir in 1 tbsp butter for shine. Allow ganache to cool slightly but remain pourable.
  14. Remove cake from fridge and pour ganache evenly over top, smoothing edges with offset spatula.
  15. Refrigerate at least 30 minutes to set glaze and buttercream layers.
  16. Bring cake to room temperature before slicing. Use sharp knife wiped clean between cuts for perfect layers.

Notes

Use gel food coloring to avoid altering sponge texture. If buttercream is too soft, chill for 10 minutes and re-whip. Trim sponge layers with serrated knife to avoid squashing. Bake layers one after another if only one pan is available. Refrigerate cake between steps to set layers. For vegan or dairy-free versions, substitute butter and cream accordingly.

Nutrition

Keywords: opera cake, coffee buttercream, patriotic cake, almond sponge, joconde sponge, red white and blue cake, Fourth of July dessert, layered cake, chocolate ganache

Find it online: https://dahliadishes.com/perfect-red-white-and-blue-opera-cake-recipe-with-coffee-buttercream-tutorial/