01 -
Preheat your oven to 350°F (175°C). Place the stick of butter in a 9×9-inch baking dish and put it in the oven to let the butter melt as the oven heats up. This takes about 3-4 minutes.
02 -
In a large bowl, whisk together the flour, baking powder, salt, and sugar. Add the buttermilk, vanilla extract, and lemon extract (if using). Stir until the batter is smooth, thick, and pourable.
03 -
Carefully pour the batter evenly over the melted butter in the baking dish without stirring. The butter should remain on top of the batter.
04 -
Spoon the lemon pie filling or lemon curd evenly over the batter without mixing. During baking, the filling will sink to form a custard-like layer while the batter rises.
05 -
Place the dish in the oven and bake for 45-55 minutes, or until the edges are golden brown and the center looks set but slightly soft. A toothpick inserted should come out clean or with moist crumbs.
06 -
Remove the cobbler from the oven and let it cool for 10-15 minutes. Cooling helps the filling firm up for easier serving.
07 -
Cut the cobbler into squares and serve warm. Top with whipped cream, ice cream, powdered sugar, or fresh lemon slices as desired.