Popsugar Lifestyle No-Bake How to Make a Watermelon Cake How to Make a No-Bake Watermelon Cake, in Pictures 22 May, 2018 by Anna Monette Roberts View On One Page Photo 7 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Serve It Up The cake tastes best when served immediately, but it can be carefully covered with foil and refrigerated for several hours (up to a day). Previous Next Start Slideshow No-BakeWhipped CreamWatermelonCakeDessertSummerRecipes