First Step: Preheat and Prepare the Berries Preheat your oven to 350°F (177°C). Grease an 8×8 or 9×9 inch baking pan lightly. In a large bowl, gently combine the mixed berries with ½ cup granulated sugar, cornstarch, lemon juice, and vanilla extract. If using frozen berries, add them frozen to avoid excess liquid and maintain a firm filling. Spread the berry mixture evenly in the prepared pan.

Second Step: Make the Biscuit Topping In a separate bowl, whisk together the flour, ⅓ cup sugar, baking powder, and salt. Add the cold, cubed butter and cut it into the dry ingredients using a pastry cutter or your fingers until the mixture resembles coarse, pea-sized crumbs. Slowly stir in the cold buttermilk just until combined, being careful not to overmix to keep the topping flaky.

Third Step: Assemble the Cobbler Divide the biscuit dough into sections and flatten each piece slightly with your hands. Place the flattened biscuit dough pieces over the berry filling, covering most of it but leaving some berry visible. Optionally, brush the biscuit topping with 1 tablespoon of buttermilk and sprinkle coarse sugar on top for a crunchy, shiny crust.

Fourth Step: Bake Until Golden Bake the cobbler for 45 to 55 minutes, or until the biscuit topping is golden brown and cooked through. A toothpick inserted into the biscuit should come out clean. For crispier edges, consider melting some butter in the baking dish before adding the batter, a helpful variation for texture enthusiasts.

Final Step: Cool and Serve Remove the berry cobbler from the oven and let it cool for about 5 minutes. Serve warm, ideally topped with vanilla ice cream or whipped cream to complement the sweet fruit and biscuit flavors. For vegan adaptations, plant-based ice cream or whipped coconut cream make excellent alternatives.