Soak the gelatine in water as directed you have on the package. For the basics of cake grind 2 egg yolks with sugar until white. Add sour cream, slaked soda and mix well. Add crushed biscuits and stir a lot. The dough should be thick. The form of grease and sprinkle with crumbs of that cookie. Put the dough and flatten. Put in the preheated oven for 10 minutes (the cake needs to "grab" at the edges and in the middle to stay watery).

Curd grind with melon syrup until smooth and spread on top of cake, slightly mixed with mid – surface is obtained a blurred image . Return to the oven for another 10 minutes.

At this time, beat egg whites to a foam with 1 tablespoon of sugar. Using a pastry syringe to put bumpers of protein and a bit to the middle of the cake. Put in the oven for even Browning of proteins. Remove from the oven and cool.

The melon, remove seeds and peel, cut into small slices and mash with a fork into mush, but that was still a little lumpy. I got it easy because the melon was very ripe. Melt the gelatin and mix with the melon.

Let cool slightly and add ice, lightly stirred and distributed relatively evenly in this melon mass.

On the cooled cake pour the resulting mass and put in the refrigerator until firm. Decorate as desired