Preheat your oven to 350°F (175°C).
Combine crushed pretzels, melted butter, and granulated sugar in a bowl.
Press the mixture into the bottom of a 9x13 inch baking dish.
Bake for 10 minutes, then let cool.
In a mixing bowl, beat softened cream cheese and powdered sugar until smooth.
Fold in whipped topping gently until blended.
Spread the cream cheese mixture over the cooled pretzel crust.
In another bowl, mix sliced strawberries with strawberry gelatin.
Spread the strawberry mixture over the cream cheese layer.
Refrigerate for at least 4 hours before serving.
