A traditional margarita is made with tequila, triple sec and lime juice. A frozen strawberry margarita is made by combining these ingredients -- plus strawberries -- with ice cubes and blending until smooth.
A frozen strawberry margarita with 1 oz. tequila, ½ oz. strawberry schnapps, 1 oz. strawberries, 1 oz. lemon juice and ½ oz. triple sec, poured into a 4-oz. glass, has 168 calories. A homemade frozen strawberry margarita recipe from allrecipes.com, with strawberries, pink lemonade, tequila, triple sec and ice cubes, has about 311 calories per serving.
A margarita glass has a double bowl -- a narrow bowl on the bottom topped by a wide bowl -- as well as a wide upper rim to allow for salting. A traditional margarita glass holds only 6 oz., but specialty glasses come in a variety of sizes.
The frozen margarita machine was invented on May 11, 1971, according to the National Museum of American History. The machine was crafted from a soft-serve ice cream machine by a restaurant owner in Dallas, Texas.