Adapted from Gourmet LA
6 ounces frozen limeade concentrate
6 ounces beer, light, lager type preferred
6 ounces tequila
Lime slices, to garnish
Margarita salt, for glass rims, optional
To prepare salted glasses, dip edge of rim into water, then into a plate of margarita salt. Set aside.
Fill blender with ice. Add limeade, beer and tequila and blend till slushy. Pour into prepared glasses and garnish with a lime slice.