BLT Biscuit Sliders

Name: BLT Biscuit Sliders
Ingredients: 2 cups all-purpose flour, plus more for dusting; 1 tablespoon baking powder; 1 tablespoon sugar; Kosher salt; 6 tablespoons cold unsalted butter, cubed; 3/4 cup finely grated sharp cheddar cheese; 3 scallions, finely chopped; 3/4 cup cold buttermilk, plus more for brushing; 16 slices bacon; 1 avocado; Juice of 1/2 lime; 2 tablespoons chopped pickled jalapenos, plus 1 tablespoon brine; 2 plum tomatoes, thinly sliced; 2 heads baby lettuce, leaves torn