Blueberry Poke Cake

Description A delicious, fresh blueberry sauce adds a beautiful color to this white sheet cake. Top each serving with sweetened whipped cream and garnish with fresh blueberries, if desired. Ingredients 1 (15.25 ounce) package white cake mix (such as Pillsbury®) 3 ounces white cake mix extender 1 ¼ cups water 4 egg whites ⅓ cup vegetable … Read more