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Perfect St. Patrick’s Lucky Mint Chocolate Mousse Cake

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A festive and easy-to-make mint chocolate mousse cake with a moist chocolate base and light, fluffy mint mousse topping, perfect for St. Patrick’s Day celebrations.

Ingredients

Scale
  • 1 cup all-purpose flour (120g)
  • 3/4 cup granulated sugar (150g)
  • 1/4 cup unsweetened cocoa powder (25g), sifted
  • 1 tsp baking powder
  • 1/2 tsp baking soda
  • 1/4 tsp salt
  • 3/4 cup buttermilk (180ml), room temperature
  • 1/4 cup vegetable oil (60ml)
  • 1 large egg, room temperature
  • 1 tsp vanilla extract
  • 1/2 cup hot water (120ml)
  • 1 1/2 cups heavy whipping cream (360ml), chilled
  • 1/3 cup powdered sugar (40g), sifted
  • 1 tsp mint extract
  • A few drops green food coloring (optional)
  • 4 oz semisweet chocolate chips (115g), melted and slightly cooled
  • Fresh mint leaves, handful (for garnish)
  • 1/4 cup chocolate shavings or curls (optional, for garnish)
  • 2 tbsp crushed peppermint candies (optional, for garnish)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9-inch cake pan and line the bottom with parchment paper.
  2. In a large bowl, sift together flour, sugar, cocoa powder, baking powder, baking soda, and salt. Whisk to combine.
  3. In a separate bowl, whisk buttermilk, vegetable oil, egg, and vanilla extract until smooth.
  4. Pour wet ingredients into dry ingredients and stir gently until just combined; do not overmix.
  5. Slowly add hot water while mixing gently; batter will be thin.
  6. Pour batter into prepared pan and bake for 30-35 minutes or until a toothpick inserted comes out clean. Let cool completely on a cooling rack.
  7. In a chilled bowl, whip heavy cream with powdered sugar until soft peaks form.
  8. Gently fold in mint extract and green food coloring until combined.
  9. Slowly fold in melted semisweet chocolate until mousse is silky and evenly tinted.
  10. Spread mousse evenly over cooled cake using a spatula; smooth or create peaks as desired.
  11. Refrigerate assembled cake for at least 2 hours or overnight to set mousse.
  12. Before serving, garnish with fresh mint leaves, chocolate shavings, and crushed peppermint candies.

Notes

Keep mixing bowls and beaters chilled for better whipping results. Do not overwhip cream to avoid grainy texture. Let cake cool completely before adding mousse to prevent melting. If mousse is loose, chill for 15 minutes before spreading.

Nutrition

Keywords: mint chocolate mousse cake, St. Patrick’s Day dessert, easy chocolate cake, festive mousse cake, homemade mousse cake

Find it online: https://avabake.com/perfect-st-patricks-lucky-mint-chocolate-mousse-cake-recipe-easy-and-homemade/