4th of July Desserts: Decorate an American Flag Cake

Bahan-bahan (1 porsi)

• 1 baked and cooled quarter sheet cake (such as vanilla sheet cake)
• 1 cup (226g) unsalted butter, softened to room temperature
• 4 and 1/2 cups (540g) confectioners’ sugar
• 1/3 cup (80ml) heavy cream
• 2 teaspoons pure vanilla extract
• salt, to taste
• 1/2 cup (70g) fresh blueberries
• 2 -3 cups (380–560g) halved fresh strawberries