Ingredients
Method
Preparation
- Preheat the oven to 350°F. Spray a 12x17x1-inch half sheet pan with non-stick spray.
- In a medium bowl, sift together the flour, baking powder, and salt.
- In a stand mixer, cream the sugar and butter until fluffy.
- Add the eggs one by one, mixing in the vanilla extract next.
- Fold in the sour cream and vegetable oil until just incorporated.
- Gradually add the flour mixture and buttermilk, mixing until combined.
Baking
- Spread the batter evenly into the prepared pan and bake for 16-18 minutes.
- Cool the cake completely.
Frosting Preparation
- Mix the cold milk and powdered sugar until dissolved.
- Add the pudding mix and beat until thickened.
- Fold in the thawed whipped topping until light and fluffy.
Decoration
- Frost the cooled cake with two-thirds of the frosting.
- Decorate with blueberries and halved strawberries to create a flag design.
- Use the remaining frosting to pipe between the fruits.
Notes
Store leftovers in an airtight container in the refrigerator for up to three days. Flavors deepen after a day or two.
