Ingredients

1 cup plus 2 tablespoons butter, softened, divided2 cups packed brown sugar2 large eggs, room temperature4 teaspoons vanilla extract, divided3 cups old-fashioned oats2-1/2 cups all-purpose flour3/4 teaspoon baking soda3/4 teaspoon salt, divided1 can (14 ounces) sweetened condensed milk2 cups semisweet chocolate chips1 cup chopped pecans

Preparation

In a large bowl, cream 1 cup butter and brown sugar until light and fluffy, 5-7 minutes. Beat in eggs and 2 teaspoons vanilla. Combine the oats, flour, baking soda and 1/2 teaspoon salt; gradually add to creamed mixture and mix well. Set aside.

In a large heavy saucepan over low heat, combine the condensed milk, chocolate chips and remaining butter and salt. Cook and stir until smooth. Add the nuts and remaining vanilla. Press 4 cups oat mixture into an ungreased 13x9-in. baking pan; spread with chocolate mixture. Sprinkle with remaining oat mixture.

Bake at 350° for 30-35 minutes. Cool completely on a wire rack. Cut into bars.