Place the spicy chili peppers in a shaker and muddle them slightly, if desired
Combine the agave nectar, lime juice, tequila, and a few ice cubes
Give it a good shake
Shake the tequila for 30 seconds or more to completely incorporate it
In your margarita glass, brush a wedge of lime across the top
Dip the rim of the glass in the salt and tajin spice mixture that has been placed into a small dish
The salt-tajin mixture will stick better to the lime juice
Pour the liquid through a sieve into a margarita glass
Optional garnishes include jalapeño slices and a lime wedge
