10 1large watermelon, refrigerated 0sugar, to taste 0.125tsalt 8ozorange juice concentrate 2ccrushed ice 1cvodka or white rum (optional) Cut the watermelon in half, scoop out the fruit, and put it in in a bowl. Squish the melon with both hands, and break it up into pulp. Strain with a large sieve, and extract the juice. Add the sugar to taste, then salt, and then the orange juice concentrate. Grind the ice in a blender with the watermelon juice. Stir in the vodka or rum, if desired.