Cut a lime into quarters and use one to rub along the rim of the glass.
1 lime
Spread margarita salt on a small plate and then invert the glass into the salt so that it sticks to the rim.
1 tablespoon margarita/coarse salt
Using a cocktail muddler or the end of a wooden spoon, gently muddle the mint (I recommend using 1 sprig, and then adding more, if desired) by pressing the leaves. Only a few gentle presses, around 3 or 4, are necessary to extract the juices. Over-muddling will make it turn bitter.
1-2 sprigs of mint
Add tequila, triple sec, and lime juice and ice. Shake well. Taste and add sweetener, if desired. 1-2 teaspoons should do it.
2 oz (1/4 cup or 60 ml) blanco tequila, 1 oz (2 tbsp or 30 ml) triple sec, 1 oz (2 tbsp or 30 ml) lime juice, maple syrup, ice
Fill a glass with ice and strain the margarita into it. Garnish with lime wedges and additional mint.