01 -
Preheat oven to 350°F. Place butter in a 9x9 inch baking dish and melt in preheated oven for 3-4 minutes until fully melted. Remove from oven.
02 -
In a bowl, whisk together the flour, baking powder, salt, and sugar.
03 -
Whisk in the buttermilk, vanilla, and lemon extract (if using) until a smooth batter forms.
04 -
Pour the batter evenly over the melted butter in the baking dish (do not stir). Spoon the lemon pie filling or lemon curd evenly over the batter.
05 -
Bake for 45-55 minutes until puffed and golden brown around the edges. Remove from oven and let cool slightly. The lemon filling will form a pudding on the bottom!
06 -
Serve warm, topped with whipped cream, ice cream, lemon slices, powdered sugar, or desired toppings.