Berry Vanilla Naked Cake with Lemon Whipped Cream Frosting

Ingredients

• 4 Eggland's Best eggs, separated
• 3/4 cup butter, softened
• 2 Tbsp vegetable oil
• 1 1/2 cups sugar
• 2 1/2 cups all purpose flour
• 2 Tbsp cornstarch
• 1 Tbsp baking powder
• 3/4 tsp salt
• 1 cup milk (whole is best, but 2% works as well)
• 2 tsp vanilla extract
• 1/3 cup sour cream
• 1 cup strawberries, hulled
• 1 cup raspberries
• 1/2 cup sugar
• 1 pint heavy whipping cream
• 1 8 oz container whipped cream cheese
• 2 Tbsp lemon zest (about the zest of 2 large lemons)
• 1/2 cup powdered sugar
• 1 tsp vanilla extract
• 1/2 cup raspberries
• 1/2 cup strawberries, sliced and hulled
• Strawberries and Raspberries