Creating the Blackberry Pretzel Dessert is straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Crust: In a medium bowl, combine the crushed pretzels, melted butter, and granulated sugar. Mix well.
3. Bake Crust: Press the pretzel mixture into the bottom of a 9×13 inch baking dish. Bake for about 10 minutes, then remove and let it cool.
4. Cream Cheese Mixture: In a separate bowl, beat together the cream cheese and powdered sugar until smooth. Gently fold in the whipped topping.
5. Spread Mixture: Once the pretzel crust has cooled, spread the cream cheese mixture evenly over the crust.
6. Prepare Blackberries: In another bowl, combine the fresh blackberries, blackberry jam, and lemon juice. Mix until the blackberries are coated.
7. Layer the Topping: Spoon the blackberry mixture over the cream cheese layer, distributing it evenly.
8. Chill: Cover the dish with plastic wrap and refrigerate for at least 3-4 hours, preferably overnight for best results.
9. Serve: Once chilled, cut into squares and serve.

With these steps, you’ll transform simple ingredients into a truly delightful dessert!