STEP 1 | PREPARE THE BATTER
Preheat oven to 350°. Combine dry cake mix, gelatin powder, water and oil. Beat on low speed for 1 minute and then beat on medium for 4 minutes.
STEP 2 | FINALIZE THE BATTER
In a small bowl, beat egg whites at high speed until stiff peaks form. Fold egg whites and mashed strawberries into the cake batter.
STEP 3 | BAKE
Pour into the greased and floured pan. Bake 25-30 minutes. Cool it for 10 minutes before removing it from pans.
STEP 4 | SERVE
Spread whipped cream or frosting between layers and over top and sides of cake. If frosted with whipped cream, store in the refrigerator.