Bring 2 cups water, 3/4 cup sugar and a pinch of salt to a boil, whisking; remove from the heat. Sprinkle two 1/4-ounce packets unflavored gelatin over 1 1/2 cups evaporated milk and let stand for 2 minutes; whisk into the sugar mixture along with 1 tablespoon almond extract. Strain into an 8-inch square baking dish. Let cool, then cover and refrigerate until firm. Cut into cubes and top with fruit cocktail.