Melt butter in the microwave.

Stir in pretzel crumbs and sugar.

Press the mixture into a lightly buttered pie plate to form the crust.

Refrigerate the crust while making the filling.

In a large bowl, whip cream until it forms soft peaks.

Set whipped cream aside.

In a separate large bowl, combine sweetened condensed milk, lime juice, tequila, and triple sec.

Adjust the amount of tequila to taste.

Fold the whipped cream into the condensed milk mixture.

Pour the filling into the prepared crust.

Freeze for two hours until firm.

Garnish as desired with orange or lime twists.

Store any leftovers in the fridge or freezer.