1. Shake ingredients with ice
2. Serve in a glass

There are many variants:
- you can add salt, tajin on the rim
- you can add ice, or not
- you can blend in with ice for a slushy margarita
- you can add jalapeño syrup (homemade: boil 1/2 tsp sugar with 1/2 cup water with sliced jalapeños until water evaporates)