Prepare the sponge cake: take 4 egg whites, salt and 4 tbsp sugar carefully whisk in a thick foam. Before you add the flour, sieve it 3 times to make it saturated with oxygen. Now the flour and 4 egg yolks should be mixed with the whipped proteins, bring to a homogeneous mass. The capacity for baking grease with butter and sprinkle with semolina, put the resulting mass in the prepared container. Put to bake. While our cake is cooked, we will prepare the stuffing. For this we need to take the cottage cheese, vanilla sugar, 4 tbsp sugar and give everything a good stretch, I just scrolled in a blender. The resulting mass is put in the refrigerator for 2 hours. Now proceed to the watermelon. Take 2-3 slices of watermelon and make them puree the watermelon you can just scroll in a blender or RUB through a sieve. The resulting puree, strain. During this time, our cake is prepared, remove it from the oven, the cake is allowed to cool. Then thoroughly impregnate it obtained the strained watermelon juice.

Part watermelon juice heated and dissolve in it gelatin (according to the instructions on the packaging). Next, top the cake covered with a layer of cream cheese, of watermelon cut out the triangles, remove the seeds and lay them on top of the cake.

And all pour the prepared gelatin with watermelon juice. The cake is ready, put in the cold for hardening of the jelly.