In a small bowl combine the chili powder, salt and lime zest and mix well. Run a lime wedge around the rim of the glass and dip the chili, salt & zest mixture and set aside.
In a shaker add ice, tequila, tamarind syrup and fresh lime juice... Shake it!
Fill the glass with ice and then pour the margarita mixture ingredients over the ice and stir.
Garnish with a slice of lime
Recipe Note
Note: If you want it to be a little sweeter add some simple syrup or a dash of orange juice.