01 - 
                In a large bowl, whisk together flour, baking powder, baking soda, and salt until evenly blended and free of lumps.
              
              
              
                02 - 
                Add cold cubed butter to the dry mixture. Using a pastry cutter or fingertips, quickly rub butter into flour until the texture resembles coarse crumbs with visible pea-sized pieces.
              
              
              
                03 - 
                Pour cold buttermilk over the flour-butter mix. Stir gently with a fork or spatula until the dough just comes together and no dry patches remain; avoid overmixing to maintain tenderness.
              
              
              
                04 - 
                Turn dough onto a floured surface. Gently pat and fold the dough over itself 3 to 4 times to build flaky layers. Roll dough out to about 1 inch thickness carefully to avoid deflation.
              
              
              
                05 - 
                Using a sharp round biscuit cutter, press straight down into the dough and lift without twisting. Place biscuits close together on a baking sheet to encourage rising.
              
              
              
                06 - 
                Bake in a preheated 450°F oven for 12 to 15 minutes until biscuits are risen and golden brown on top.
              
              
              
                07 - 
                While biscuits bake, shape sausage into patties slightly wider than biscuits. Cook in a skillet over medium heat for 3 to 4 minutes per side until browned and cooked through. Drain on paper towels.
              
              
              
                08 - 
                Split warm biscuits with a serrated knife. Layer sausage patties and optional cheese slices between halves. Serve immediately to enjoy melted cheese and warm textures.