Preheat the Oven: Preheat your oven to 450°F. Pour the melted butter into the bottom of a 9 inch baking dish and set aside.
Mix the Dry Ingredients: In a large mixing bowl, whisk together the flour, sugar, baking powder, and salt until well combined.
Add the Buttermilk: Gradually pour in the buttermilk while gently stirring the mixture. Stir just until combined; the dough will be sticky and a bit lumpy. Be careful not to overmix.
Fold in the Blueberries: Gently fold in the fresh blueberries, taking care not to crush them. You want to distribute them evenly throughout the dough.
Shape and Place the Biscuits: Pour the dough into the baking dish with the melted butter in the bottom, evenly smoothing with a spatula. Using a sharp knife cut the sticky dough into 9 pieces, two cuts down each side.
Bake the Biscuits: Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the biscuits are golden brown and a toothpick inserted into the center comes out clean.
Prepare the Glaze: While the biscuits are baking, prepare the glaze. In a small bowl, whisk together the powdered sugar and 2 tablespoons of milk. If the glaze is too thick, add more milk a teaspoon at a time until it reaches your desired consistency.
Glaze the Biscuits: Once the biscuits are done baking, remove them from the oven and allow them to cool for a few minutes. Drizzle the glaze over the warm biscuits.
Serve: Cut or pull apart the biscuits and serve warm. Enjoy!