Dolly Parton’s Butterscotch Pie

Ingredients:
1. ½ cup unsalted butter
2. 1 cup brown sugar, packed
3. 3 large egg yolks
4. ¼ cup cornstarch
5. 2 cups whole milk
6. ¼ teaspoon salt
7. 1 teaspoon vanilla extract
Directions:

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