A festive and easy-to-make vanilla sheet cake decorated with fresh strawberries and blueberries arranged in a patriotic flag design, perfect for summer celebrations and casual get-togethers.
Use room temperature eggs and softened butter for a lighter cake crumb. Chill mixing bowls and beaters before whipping cream to achieve stiff peaks. If whipped cream softens, refrigerate cake for 15 minutes before serving. Frozen berries can be used if thawed and drained well. For dairy-free version, substitute butter with coconut oil and milk with oat or almond milk; use coconut cream for whipped topping. For gluten-free, use a gluten-free flour blend with xanthan gum if needed.
Keywords: flag cake, sheet cake, strawberries, blueberries, vanilla cake, patriotic dessert, summer dessert, easy cake recipe, homemade cake