01 - Preheat oven to 400°F. Line an 8x8-inch baking pan with parchment paper, ensuring overhang for easy removal.
02 - In a small bowl, combine crushed pretzels and melted butter. Firmly press the mixture into the bottom of the prepared pan to create an even crust.
03 - In a large bowl, whisk together flour, baking powder, baking soda, granulated sugar, and fine sea salt. Using a pastry cutter or fingertips, incorporate cold cubed butter until the mixture resembles coarse crumbs.
04 - Pour in cold buttermilk and gently mix until just combined. Avoid overmixing dough.
05 - Drop spoonfuls of biscuit dough onto the pretzel crust and gently spread to cover, taking care not to overwork.
06 - Arrange sliced dill pickles evenly across the biscuit layer and sprinkle with chopped fresh dill.
07 - Scatter shredded sharp cheddar cheese and sliced scallions over the pickle layer.
08 - Bake for 22 to 25 minutes until bars are golden and cheese is melted and bubbly.
09 - While baking, whisk together ranch dressing and buffalo wing sauce until fully combined.
10 - Allow bars to cool in pan for 10 minutes. Lift out using parchment overhang and cut into 16 squares. Drizzle generously with buffalo ranch sauce, garnish with additional dill, and serve warm or at room temperature.