Ingredients:
- For the jalapeño-watermelon syrup: 1 cup seedless watermelon, cubed (approx. 150 g)
- For the jalapeño-watermelon syrup: 1/2 cup granulated sugar (100 g)
- For the jalapeño-watermelon syrup: 1/2 cup water (120 ml)
- For the jalapeño-watermelon syrup: 1 small jalapeño, sliced (remove seeds for less heat; reserve some seeds for extra heat)
- For the watermelon juice: 4 cups seedless watermelon, cubed and chilled (approx. 600 g) — yields about 2 cups (480 ml) juice
- For the margaritas: 8 oz blanco tequila (1 cup / 240 ml)
- For the margaritas: 4 oz fresh lime juice (1/2 cup / 120 ml) — about 4–5 limes
- For the margaritas: 3–4 oz jalapeño-watermelon syrup (90–120 ml) — adjust to taste
- For the margaritas: 2 oz orange liqueur (Cointreau or triple sec) (60 ml) — optional
- For the margaritas: Ice (for shaking and serving)
- For rimming & garnish: Lime wedges for rimming and garnish
- For rimming & garnish: 1–2 tablespoons flaky sea salt or kosher salt (15–30 g) mixed with 1 teaspoon smoked paprika or chili powder (optional)
- For rimming & garnish: Thin watermelon wedges, lime wheels, and/or jalapeño slices for garnish
Instructions:
- Make the jalapeño-watermelon syrup: Combine sugar and water in a small saucepan and bring to a simmer until sugar dissolves (about 2–3 minutes).
- Add 1 cup cubed watermelon and the sliced jalapeño to the saucepan. Simmer gently 3–5 minutes to infuse, then remove from heat and mash slightly to release juices. Let steep 10–15 minutes off heat, tasting and adjusting heat as needed.
- Strain the syrup through a fine-mesh sieve, pressing solids to extract the liquid. Chill the jalapeño-watermelon syrup in the refrigerator until cool.
- Make the fresh watermelon juice: Blend 4 cups cubed watermelon until smooth and strain through a fine-mesh sieve into a pitcher to remove solids. Chill or use immediately (yields ~2 cups / 480 ml).
- Prep glasses: Rub a lime wedge around the glass rims and dip rims into the salt + chili powder mixture on a shallow plate. Set glasses aside.
- Mix the margaritas: In a cocktail shaker combine tequila, orange liqueur (if using), lime juice, chilled watermelon juice, and 3–4 oz (90–120 ml) jalapeño-watermelon syrup. Fill shaker with ice and shake vigorously until the shaker frosts (about 12–15 seconds).
- Taste and adjust: Strain into prepared glasses over fresh ice (or serve straight up). If too sweet, add a splash more lime; if too mild, add a small splash of syrup or muddled jalapeño; if too spicy, dilute with more watermelon juice or ice.
- Garnish and serve: Garnish each drink with a thin watermelon wedge, lime wheel, and/or a jalapeño slice. Serve immediately and enjoy.