No, no one named Margarita gave me this recipe. It's just me doing what I have criticized in others: Using nontraditional combinations of ingredients, in this case white tequila, lime juice and orange juice instead of the triple sec that you would use to make a margarita to cook some mussels. They were so delicious and easy to make and light to boot.
Thanks to my neighborhood fish store for the good prices for great products for me to test recipes for this section.