Find recipes for Strawberry Cake and other Course recipes. Get all the best recipes at . Recipe directions: In a large bowl, combine the dry cake mix, gelatin powder, water and oil. Beat on low speed for 1 minute or until moistened; beat on medium for 4 minutes. In a small bowl with clean beaters, beat egg whites on high speed until stiff peaks form. Fold egg whites and mash strawberries into cake batter.