Step 1

Cut a notch in a lime wedge, then run the lime around the rim of a glass. Dip the edge of the rim into a plate of salt (or for a festive look, use Margarita Salt).

Step 2

Slice the jalapeño pepper into 3 to 4 thin slices for a medium spicy drink; customize with more or less as necessary. If you prefer a more subtle heat, remove the seeds.* (Wash your hands well afterward.)

Step 3

Place the jalapeño slices, tequila, pineapple juice, Cointreau and lime juice in a cocktail shaker and fill it with ice. Shake until cold. Strain the margarita into the glass with the salted rim. Fill the glass with ice and serve.