1. On a plate, mix together the salt and chili pepper.
2. Run a lime wedge around the rim of each margarita glass and turn each glass upside down into salt mixture. Turn the glass until the rim is completely coated.
1. In a blender, combine the avocado, crushed ice, agave nectar, tequila, triple sec and cilantro springs. Blend until smooth.
2. Pour the margarita into the two prepared glasses. Garnish the rims of the glasses with lime wedges. Serve