Giant, tender Southern-style cathead biscuits loaded with juicy blueberries and warm cinnamon, finished with a buttery cinnamon-sugar crust. One bowl, quick to make, perfect for breakfast or dessert.
Preheat oven to 425°F. Line a large baking sheet with parchment paper.
In a large bowl, whisk flour, 2 tablespoons sugar, baking powder, baking soda, salt, and 1 teaspoon cinnamon.
Cut in the cold cubed butter with a pastry cutter or fingertips until pea-sized bits remain and some flour is still dry.
Gently fold in the blueberries so they’re lightly coated in the flour mixture.
Make a well and pour in the cold buttermilk, vanilla, and lemon zest. Stir just until a shaggy, slightly sticky dough forms; do not overmix.
Using a 0.5-cup scoop or measuring cup, drop 8 large mounds of dough onto the prepared sheet, spacing them about 2 inches apart.
Stir together the remaining 2 tablespoons sugar and 0.5 teaspoon cinnamon; sprinkle evenly over the biscuits.
Bake until tall and deep golden on the edges, 15 to 18 minutes.
Brush hot biscuits with the melted butter. Let stand 5 minutes before serving warm.
Notes
Keep ingredients cold for maximum lift. If dough seems dry, add a splash more buttermilk; if too sticky, lightly flour your hands. For frozen blueberries, use straight from the freezer. Store leftovers loosely covered at room temperature up to 2 days; rewarm at 300°F for 5 to 7 minutes.