We recommend using fresh strawberries if you can. Alternatively, you can substitute frozen strawberries—but to get a similar consistency to the recipe photographs, you'll need to let the strawberries defrost first. Then, make according to the recipe and serve "on the rocks" (over ice). If you use frozen strawberries that haven't been defrosted, you'll get a frosty strawberry margarita. Add ice if you'd like to thicken it even further. This method is delicious too, but it makes for a blended margarita that looks different than these recipe photos.