1 pie shell, baked
1 c. brown sugar, packed
Pinch of salt
1/4 c. cornstarch
3 tbsp. butter
2 c. milk
3 eggs, separated

Melt butter in a heavy cast iron skillet over low heat. Stir in brown sugar until smooth. Add salt. Stir cornstarch into cold milk until dissolved. Slowly add milk to butter and sugar mixture. Whisk in the beaten egg yolks. Reserve egg whites for meringue.

Cook on low heat until mixture has thickened and coats the back of a wooden or silicone spoon; pour into baked pie shell. Allow to cool.

Add meringue to top of pie and brown slightly in 400°F oven. Watch closely as it just takes a few minutes to brown.