Ingredients
Equipment
Method
Prepare the peaches
- Score the bottom of each peach with a small X, blanch in boiling water 20–30 seconds, transfer to an ice bath, peel, and slice into 1/2-inch wedges.
- Toss sliced peaches with 1/2 cup sugar, 1 tablespoon lemon juice, 1 teaspoon vanilla, 2 tablespoons cornstarch, and 1/8 teaspoon salt; let sit 20–30 minutes to macerate.
Cook the filling
- Transfer peaches and any released juices to a medium saucepan and warm over medium heat until the mixture simmers and the syrup thickens, about 3–4 minutes; remove from heat and pour evenly into a greased 9×13-inch baking dish.
Make the biscuit topping
- Preheat oven to 400°F with rack in the center.
- Whisk 2 cups flour, 1/3 cup sugar, 1 tablespoon baking powder, and 1/2 teaspoon salt in a bowl; cut in 10 tablespoons cold butter until the mix resembles coarse crumbs with some pea-size pieces.
- Stir in 1/2 cup cold buttermilk and 1/4 cup cold milk just until a drop-biscuit batter forms; do not overmix.
Assemble and bake
- Spoon heaping dollops of the biscuit batter over the peach filling, leaving small gaps; brush tops with 1 tablespoon melted butter and sprinkle 1 tablespoon coarse sugar if using.
- Place the baking dish on a rimmed sheet and bake at 400°F for 25–30 minutes until biscuits are golden and filling bubbles at the edges; tent with foil if tops brown too quickly.
- Let the cobbler rest 15–20 minutes before serving so the filling thickens and slices hold.
Notes
If peaches are very juicy, increase cornstarch by 1 tablespoon. For frozen peaches, thaw and drain excess liquid and reduce added sugar by 1–2 tablespoons. Make ahead: macerate peaches and prepare batter up to 24 hours ahead; refrigerate separately and assemble before baking.
