1 small package watermelon gelatin
1/4 cup boiling water
1 12-ounce frozen whipped topping, thawed
2 cups cubed, seeded watermelon
1 graham cracker pie crust
Dissolve jello in boiling water and cool to room temperature. Whisk in whipped cream and fold in watermelon. Pour into pie shell. Fridge for 2 hours (some like it frozen).