1. Make the Pretzel Crust:
- In a small bowl, combine the crushed pretzels, sugar, and melted butter.
- Press the mixture onto the bottom of a greased 11×7-inch dish.
- Refrigerate for 30 minutes to allow the crust to set.
2. Make the Filling:
- In a large bowl, combine the sweetened condensed milk and the thawed strawberry daiquiri mix.
- Beat in the softened cream cheese until smooth.
- Stir in the thawed, sweetened sliced strawberries.
- Fold in the thawed whipped topping.
- Pour the filling over the chilled pretzel crust (the dish will be full).
3. Freeze:
- Freeze for at least 4 hours before serving, or preferably overnight, until completely firm.
4. Make the Strawberry Sauce:
- Puree the thawed, undrained strawberries in a food processor or blender until smooth.
- Strain the puree through a fine sieve to remove the seeds.
5. Serve:
- Drizzle the strawberry sauce over the top of the frozen dessert.
- Let stand for a few minutes before serving.