You will need:

• Sea salt 
• Dried Chilli Flakes 
• 45ml Tequila 
• 30ml of Cointreau 
• 30ml Lime Juice
• Red or green fresh chilli, sliced into rounds (optional)
• Lime rounds to serve 
• Ice

To make:

1. In a mortar & pestle, grind sea salt & red chilli flakes. Then spread over a saucer or small plate. 
2. Rub a piece of lime around the lip of the glass to moisten the rim. 
3. Dip the glass in the saucer for a spicy, salty rim. 
4. Fill a cocktail shaker with ice, tequila, cointreau and lime juice. Add fresh chilli if desired. 
5. Shake well & strain into the rimmed glass. 
6. Garnish with a lime wheel.