Grandma's Butterscotch Pie

Ingredients

• 2 cups milk
• 1 cup packed light brown sugar
• 0.25 cups cornstarch
• 0.5 teaspoons salt
• 2 large egg yolks , beaten
• 1 tablespoon butter
• 1 teaspoon vanilla extract
• 1 pie crust , 9 inch

Instructions

1. 1

   Gather all ingredients. Preheat the oven to 400 degrees F (200 degrees C).

2. 2

   Combine milk, brown sugar, cornstarch, and salt in the top of a double boiler over simmering water. Cook, stirring constantly, until mixture starts to thicken, about 20 minutes.

3. 3

   Whisk in egg yolks; cook and stir until filling is thickened. Remove filling from heat; stir in butter and vanilla.

4. 4

   Pour filling into baked crust.

5. 5

   Bake in the preheated oven until the top begins to brown, about 5 minutes.