Hershey Squares

Hershey Squares...a favorite of my husband's family.  My mother-in-law, Alice Dishaw, gave this recipe to me. 
1/2 c. shortening ( I use butter, but then again, I am a bit of a butter snob)
1/2 c. brown sugar
1/2 c. white sugar
2 egg yolks
1 c. flour
1 c. oatmeal
6 regular size Hershey Bars
Cream together shortening and the sugars.  Add the egg yolks. Mix well.  Add flour and oatmeal.  Press into a greased 9x13 pan.  Bake at 350 for 18 minutes. While the dough is baking, unwrap the 6 Hershey Bars.  Remove from oven and top immediately top with the candy bars.  It works best if you lay three bars width wise in two rows.  Wait a minute or so until the tops of the candy bars are shiny and then use a knife to lightly spread the candy bars like frosting.  Super easy recipe and super yummy!!