3 fresh two crumb crust Recipes

graham cracker crumb crust (store bought or homemade ), watermelon (seeds are fine), granulated sugar, unflavored gelatin (aka, two envelopes), fresh lime juice or 1 tbsp lemon juice, egg whites, at room temperature, cold heavy cream or 1 cup whipping cream, sugar , sifted, sugar , to dust, cream (homemade or store bought )

fresh whole sardines (about 2 1/2 lb), heads and bones removed , fish kept intact, coarse fresh bread crumbs, sicilian green olives, pitted and chopped, oil-cured black olives, pitted and chopped, extra-virgin olive oil, minced rosemary, salt and freshly ground pepper, lemon wedges, for serving