Preheat oven to 350 degrees F.

Add crushed pretzels, light brown sugar and melted butter to a mixing bowl and stir to combine.

Press firmly into a lightly greased 9×13 inch baking dish and bake for 10 minutes.

Remove from oven and allow to cool completely.

Meanwhile, beat the cream cheese and powdered sugar together until creamy.

Add the whipping cream and beat until cream has stiffened into soft peaks.

Spread the mixture over the top of the pretzel crust, spreading it all the way to edges of the pan on all sides (so the jello wont seep through).

Boil 2 cups water. Add jello and stir until dissolved.

Remove from heat and stir in frozen berries.

Set aside to cool to room temperature, then pour into dish and refrigerate for 2-4 hours, until jello has set.