In a blender, combine raspberries, lime juice, and sugar (you may need to do this in batches). 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 into the blender with half of the raspberry mixture. Whirl until blended. Repeat with remaining ice and raspberry mix.
If desired, rub rims of 8 glasses (8 oz. or smaller) with lime wedge. Pour a thin layer of sugar into a shallow dish; dip glass rims into sugar. Pour margaritas into glasses and serve cold.
Note: Nutritional analysis is per serving.
Make the raspberry purée up to 1 day ahead. Refrigerate airtight, then mix cocktails just before serving.
These were very tasty, but they were a LOT more work than I was expecting. Straining the seeds out of the frozen raspberry and lime juice mixture took absolutely forever and involved a lot of elbow grease because the mixture was so thick. I sat there trying to push the mixture through the strainer for at least 30 minutes, and it got all over my kitchen in the meantime. If I ever make these again, I will try adding the alcohol before straining so that the mixture would be thinner and easier to push through the strainer. But overall, I find the margarita recipes with frozen strawberries just as tasty and a lot easier. This was just more effort than I'm willing to put into a cocktail.
Sign Up for our Newsletter
Join our newsletter for free recipes, healthy living inspiration, and special offers.