Popsugar Living Cooking Basics How to Cut a Watermelon Into Cubes How to Cut Up a Watermelon, in Pictures June 26, 2018 by Nicole Perry View On One Page Photo 4 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Slice the Watermelon Into Planks Slice the watermelon into planks in an appropriate size for your recipe. Previous Next Start Slideshow Cooking BasicsSummerBack To SchoolWatermelonSummer FoodBack To School FoodCooking How-To