Prep: 15 minutes
Cook: 30 minutes
Total Prep: 45 minutes
1 can sweetened condensed milk
8 egg yolks
2 tablespoon butter
1/4 cup chopped nuts (walnuts, peanuts, or pecans), optional
In a medium saucepan, heat sweetened condensed milk, egg yolks, and butter over low heat until thickened. Stir constantly.
Pour onto a baking sheet and let cool.
Divide into squares. Roll each square into a ball. Coat in powdered sugar.