Brimming with chocolate and sweet and sticky sweetened condensed milk these bars are the perfect compliment to a tall glass of milk or cup of tea. Crunchy, creamy, sweet and salty... they basically have it all.
Cream together butter, sugar and flour until is resembles cookie dough. Press evenly into a 9x13" pan and bake for about 25 minutes or until golden brown. It will look craggy, and that's OK!
While the base is cooling, pour milk into a small saucepan and stir in 2 tbsp of butter. Cook, stirring constantly, until slightly thickened. It's okay if little bits of the milk caramelize on the pan and get scraped back into the mixture by stirring. It's all going to get caramelized eventually.
Once thickened, pour and spread over the cookie base. Bake for an additional 10-15 minutes or until milk is light golden brown.
Remove pan from oven and immediately sprinkle chocolate chips over the milk layer. Return to the oven for just a few minutes to melt the chips-- they will look shiny when ready. Remove pan from the oven and spread the melted chocolate evenly over the milk layer.
Sprinkle chopped Heath bars over the chocolate and allow to cool completely before slicing.