Combine the ingredients and form a soft sand with your hands
Add eggs and make crumbles
Blend than stir 1 kg of watermelon without seeds then sift it
Cook the watermelon with the sugar and the starch into a saucepan at low until it became thick, then let it cool
Place 3/4 of the crumbly mix into the baking pan and press in into a cake form, then add the watermelon jam on top and top it with the last crumbles
Put it in the oven for 40/45 min at 180 degrees Celsius. Let it cool and serve