To make ahead: Cover and refrigerate the margarita mix (Step 2) for up to 2 days.
Tip: To make your own simple syrup: Bring 1 cup sugar and 1 cup water to a boil in a medium saucepan, stirring frequently to dissolve the sugar. Let cool for 30 minutes and then refrigerate until cold, at least 1 hour. Makes about 1 1/2 cups.
156 calories; protein 0.3g; carbohydrates 14g; dietary fiber 0.2g; sugars 12g; fat 0.1g; vitamin a iu 10.6IU; vitamin c 7.3mg; folate 2.2mcg; calcium 11mg; iron 0.1mg; magnesium 1.9mg; potassium 27.4mg; sodium 6.6mg; added sugar 6g.