Funfetti Napoleon Cake Recipe | Tasting Table
Prep Time:
30 minutes
Cook Time:
20 minutes
Servings:
6 to 8 servings
Ingredients
  • :::For the Puff Pastry:One 17.3-ounce package (two 9-inch square sheets) puff pastry, defrosted according to package instructions and halved lengthwise:::
  • 2 tablespoons confectioners' sugar
  • :::For the Mascarpone Filling:2 cups mascarpone:::
  • ½ cup confectioners' sugar1 teaspoon vanilla extract
  • ⅓ cup heavy cream, whipped to stiff peaks½ cup rainbow sprinkles
  • :::For the Icing:1 cup confectioners' sugar:::
  • 2 tablespoons milk
  • 2 tablespoons unsalted butter, melted and cool
  • 2 teaspoons corn syrup
  • Red, blue, yellow and green food colorings
Directions
  1. Preheat the oven to 425° and line 2 baking sheets with parchment paper. Place 2 strips of puff pastry, 2 inches apart, on each sheet tray and prick all over with a fork. Using a fine-mesh sieve, dust both sides of the puff pastry with the confectioners' sugar. Bake until golden brown and the sugar just begins to melt, 12 to 15 minutes. Remove the baking sheets and lightly press another baking sheet on top of each one to flatten slightly. Remove the top baking sheets and allow the pastries to cool completely.
  2. Make the filling: In a medium bowl, mix together the mascarpone, confectioners' sugar and vanilla until smooth. Carefully fold in the whipped cream. Chill until ready to use.
  3. Make the icing: In a small bowl, whisk together the confectioners' sugar, milk, melted butter and corn syrup. Divide ½ cup of the icing between 4 small bowls, with 1½ tablespoons of icing in each. Add 3 to 4 drops of food coloring into each bowl and stir to incorporate, leaving you with a bowl each of red, blue, yellow and green icing. Transfer the icings to separate piping bags and set aside.
  4. Assemble the napoleon: Right before assembling, fold the sprinkles into the mascarpone filling and transfer to a piping bag. On a platter, lay 1 piece of puff pastry down and pipe on a third of the filling, covering the entire surface. Repeat this 2 more times. On the baking sheet with the final piece of puff pastry, spread the white icing over the entire surface. Working quickly, pipe alternating colors in thin lines along the width of the puff pastry. Using a toothpick, drag the point along the length of the surface to create the arrow design in the icing, making sure to alternate which end you start with.
  5. Using a large offset spatula, lift the iced piece of puff pastry and place on top of the napoleon. Slice crosswise and serve.