Refreshing Watermelon Lemonade Slush Postcards 2 years ago Share Refreshing Watermelon Lemonade Slush Postcards June 30, 2022 Postcards Ingredients 1 cup cubed seeded watermelon1 ¼ cups water3 Tbs sweetened strawberry lemonade drink mix Directions Step 1Place the watermelon pieces onto a plastic-wrapped baking sheet, and freeze until solid, about 45 minutes. Step 2Place the frozen watermelon, water, and strawberry lemonade drink mix in a blender; blend until slushy. Facebook Twitter Youtube Print Facebook-messenger