4 cups frozen unsweetened raspberries, slightly thawed
1 1/2 cups freshly squeezed lime juice
3/4 cup sugar, more to coat rims
1 cup tequila
1 cup triple sec
5 cups crushed ice
1 lime wedge
in a blender, combine raspberries, lime juice & sugar. whirl until puréed. rub purée through a fine strainer set over a glass measure; discard seeds. stir in tequila and triple sec. put half of the crushed ice in the blender with half of the raspberry mix; blend. rub rims of glassess with lime wedge. pour a thin layer of sugar into a shallow dish. dip rims into sugar & pour margaritas. serve cold.