01 -
Turn on the oven to 350°F (175°C). Put the butter into your 9x9-inch baking dish and place it in the oven for a few minutes, until melted.
02 -
Take a mixing bowl and blend together the flour, sugar, baking powder, and salt. Add the buttermilk, vanilla, and lemon extract (if you're using it). Stir until smooth and runny.
03 -
Carefully pour the batter over the melted butter in your baking dish. Leave it as-is to keep the layers from combining.
04 -
Drop spoonfuls of lemon pie filling or curd evenly on top. It'll settle into the batter as it cooks, creating a custardy layer.
05 -
Pop it into the oven and bake for 45-55 minutes. It’s ready when the sides are a light brown and a toothpick poked into the middle comes out clean or with soft crumbs.
06 -
Take it out and let it rest for 10-15 minutes. This helps the filling set up a little before you cut into it.
07 -
Slice into portions and serve warm. You can top it off with whipped cream, ice cream, powdered sugar, or even lemon slices if you want.