I love watermelon margaritas, especially when they're made with the sweetness of fresh watermelons. Florida watermelons have made their way into stores, and it was too big of a temptation not to buy one.
Many recipes add a lot of sugar: sugar on the rim of the glass as well as sugar in the margarita itself. I think that a ripe watermelon has enough sweetness, and I leave any extra sugar out of my recipe.
4 cups cubed, seeded watermelon
1/2 cup (or more!) tequila (I like Patron silver)
3 tablespoons fresh squeezed lime juice
1 tablespoon orange liqueur (I like Cointreau)
Combine the watermelon, tequila, lime juice, and orange liqueur in a blender. Process until it's smooth. Pour it into margarita glasses filled with ice. Garnish with a lime wedge.