Middle layer of 2 tablespoons butter, semi-sweet chocolate and condensed milk all melted and blended together with nuts and vanilla. (Check out video on sweet_enuf on Instagram.)
Top chocolate layer with remaining oat mixture and bake.
Chocolate Revel Bars
Preheat oven to 350F. You will need an ungreased 15 x 10-inch baking pan.
1 cup butter, room temperature
2 cups packed brown sugar
1 tsp baking soda
2 tsp. vanilla
2 1/2 cups all-purpose flour
3 cups quick-cooking rolled oats
1 1/2 cups semisweet chocolate pieces
1 x 14-ounce can sweetened condensed milk
1/2 cup chopped walnuts or pecans
2 tsp vanilla
Set aside 2 tablespoons of butter.
In a large bowl beat remaining butter with an electric mixer on medium for 30 seconds. Add brown sugar and baking soda, beating until combined. Scrape bowl as needed. Beat in eggs and the first 2 teaspoons of vanilla. Turn mixer to low and beat in flour. Stir in the oats.
Press 2/3 of the mixture into the 15 x 10-inch pan.
For filling, in a medium saucepan combine the 2 tablespoons of reserved butter, chocolate pieces and condensed milk. Heat over low heat until chocolate is melted, stirring until smooth. Remove from heat and add in the nuts and 2 teaspoons of vanilla.
Spread melted chocolate mixture over base and spread evenly. Crumble the remaining oat mixture and sprinkle over the chocolate layer.
Bake for approximately 25 minutes or until top crumbs are light brown. Remove from oven and cool completely before cutting into squares.