Step 1: Prepare the Pretzel Crust

Start by crushing the pretzels. You can use a food processor to pulse the pretzels into fine crumbs, or place them in a zip-top bag and crush them with a rolling pin until finely ground. Aim for a sand-like texture with a few small chunks for added crunch.

In a large bowl, combine the crushed pretzels with melted butter and brown sugar. Stir the mixture until the pretzel crumbs are evenly coated and resemble wet sand. The butter will help bind the crust while the brown sugar adds a hint of sweetness to balance the salty pretzels.

Step 2: Press the Crust into the Pie Dish

Pour the pretzel crumb mixture into a 9-inch pie dish. Using the back of a spoon or the bottom of a glass, firmly press the mixture into the bottom and up the sides of the dish, creating an even layer. Make sure it is well packed to ensure the crust holds together. Place the crust in the refrigerator to chill for at least 30 minutes while you prepare the filling. Chilling helps solidify the butter and keeps the crust firm.

Step 3: Make the Chocolate Filling

In a medium saucepan, heat 1 cup of heavy cream over medium-low heat until it just begins to simmer (but not boil). Remove from the heat and add the chocolate chips, stirring gently until the chocolate is fully melted and smooth. The residual heat from the cream will melt the chocolate into a silky, glossy mixture.

Once the chocolate is melted, stir in the vanilla extract and a pinch of salt to enhance the chocolate flavor. If you prefer a sweeter filling, whisk in 2 tablespoons of powdered sugar. Set the mixture aside and allow it to cool slightly.

Step 4: Whip the Remaining Cream

In a separate mixing bowl, whip the remaining ½ cup of heavy cream to stiff peaks using an electric mixer. This will add lightness to the chocolate filling, giving it a mousse-like texture. Once whipped, gently fold the whipped cream into the chocolate mixture in batches, being careful not to deflate the whipped cream too much. The goal is to create a light, airy chocolate filling.

Step 5: Fill the Pie and Chill

Pour the chocolate filling into the chilled pretzel crust, smoothing the top with a spatula. Place the pie in the refrigerator to chill for at least 3-4 hours or until the filling is set and firm. For best results, let it chill overnight.