Here’s how to create the delightful Blackberry Pretzel Dessert:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Crust: In a mixing bowl, combine the crushed pretzels, melted butter, and granulated sugar. Stir until well mixed.
3. Bake the Crust: Press the pretzel mixture into a greased 9×13 inch baking dish. Bake for 10 minutes, then remove from the oven to cool.
4. Mix Cream Cheese Layer: In a separate bowl, beat the softened cream cheese and powdered sugar until smooth. Gently fold in the whipped topping until combined.
5. Spread Cream Cheese Layer: Once the pretzel crust has cooled, spread the cream cheese mixture evenly over the crust.
6. Prepare Blackberry Topping: In a small saucepan over medium heat, combine the blackberries, lemon juice, water, and cornstarch. Cook until the mixture starts to thicken.
7. Cool Blackberry Topping: Remove from heat and let the berry mixture cool to room temperature.
8. Top the Dessert: Pour the blackberry mixture over the cream cheese layer, spreading it evenly.
9. Chill the Dessert: Cover the dish with plastic wrap and refrigerate for at least 4 hours to allow the flavors to meld.
10. Slice and Serve: Once chilled, slice the dessert into squares for serving.

By following these steps, you’ll create a luscious dessert that’s sure to impress your family and friends.