This Butterscotch Pie is an old-fashioned dessert that tastes like it came straight from a grandmother's recipe box. A silky brown sugar custard sets inside a flaky baked crust, then gets crowned with a cloud of toasted meringue. Made with simple pantry staples, its deep, buttery flavor has that unmistakable caramelized brown sugar taste that separates real butterscotch from anything artificial.
Fine-mesh strainer For straining filling to ensure smooth texture
Mixing bowls
Whisk
Rubber spatula
Plastic wrap To prevent skin from forming on filling
Kitchen torch Optional, for browning meringue
Parchment paper For blind baking the crust
pie weights or dried beans For blind baking the crust
Ingredients
1baked 9-inch pie crusthomemade or store bought
1 1/2cupslight brown sugarpacked
1/3cupcornstarch
1/4teaspoonsalt
3cupswhole milk
4large egg yolksroom temperature, whites reserved for meringue
4tablespoonsunsalted buttercut into pieces
2teaspoonspure vanilla extractdivided
4large egg whitesroom temperature
1/4teaspooncream of tartar
6tablespoonsgranulated sugar
Instructions
Preheat oven to 375°F. Roll pie dough into a 9-inch pie dish and crimp edges. Line with parchment paper and fill with pie weights. Bake for 15 minutes, then remove weights and parchment and bake for 8-10 more minutes until golden brown. Cool completely.
In a heavy bottom saucepan off the heat, whisk together brown sugar, cornstarch, and salt until no lumps remain.
Slowly whisk in whole milk until fully combined. Place over medium heat and cook, whisking constantly, for 8-10 minutes until mixture thickens and bubbles. Do not walk away.
In a separate bowl, whisk egg yolks lightly. Slowly pour about 1/2 cup of hot milk mixture into the yolks while whisking constantly to temper. Pour the tempered yolk mixture back into the saucepan, whisking constantly. Cook 2-3 minutes until thick enough to coat the back of a spoon.
Remove from heat and stir in butter and 1 teaspoon of vanilla until melted and incorporated. Pour filling through a fine mesh strainer into the baked crust. Press plastic wrap directly onto the surface to prevent a skin from forming.
In a clean mixing bowl, beat egg whites and cream of tartar on medium speed until soft peaks form. Gradually add granulated sugar, one tablespoon at a time, beating well after each addition. Continue beating until meringue is glossy and holds stiff peaks.
Remove plastic wrap from pie. Spread meringue over the warm filling, ensuring it touches the crust all the way around to prevent shrinking and weeping.
Bake at 350°F for 10-12 minutes until meringue peaks are golden brown, or use a kitchen torch to brown the meringue. Cool on the counter for 1 hour, then refrigerate for at least 4 hours until fully set before slicing.
Notes
Whisk constantly while the custard cooks to prevent scorching on the bottom of the pan.
Temper the egg yolks slowly by adding the hot mixture gradually while whisking vigorously to prevent scrambling.
Use room temperature egg whites for a taller, more stable meringue that holds its peaks better.
Spread the meringue while the filling is still warm so it seals to the crust and does not weep later.
Let the pie chill fully for at least 4 hours before slicing, as a warm filling will not hold its shape.
Store the pie loosely covered in the refrigerator for up to 4 days.
This pie is not recommended for freezing, as the meringue and custard both change texture once thawed.
For a no-bake topping, swap the meringue for freshly whipped cream.
Add a tablespoon of bourbon to the filling for a deeper, boozy flavor variation.
Use a warm, clean knife for the neatest presentation when slicing.