1 & 1/2 fluid ounces or 4.45 centilitres of Watermelon Pucker
1 fluid ounce or 3 centilitres of Amaretto
4 fluid ounces or 12 centilitres of 7-Up

Fill an 8 ounce glass with ice, add the watermelon pucker and the 7-Up. Lace with amaretto.