Fill blender with ice. Add 8 ounces Tequila, 8 ounces Thunderbird, 8 ounces of Margarita mix. Blend down to make room, then add Watermelon pieces. Blend down and repeat watermelon step until you got about 40 oz.
Using a funnel, pour into empty 40. Add tall straw rimmed with salt and enjoy.
Rating
Based on 1 votes
Click an icon below to adjust the measurements of each ingredient to suit the desired container