Chocolate Chip Toffee Bars

We went to a bbq for Memorial Day and I brought these for dessert. For casual get togethers I like to do something people can just pick up and eat and not worry about plates, silverware, etc. I love the combination of chocolate and toffee. These were really dense and rich and had a similar taste to the Magic Cookie Bars. I even goofed and put the toffee chips on before I baked them and they still were great.

Chocolate Chip Toffee Bars
Sister's Cafe

2 1/3 c. flour
2/3 c. brown sugar
3/4 c. butter
1 egg, slightly beaten
1 (12 oz.) pkg. chocolate chips
1 c. chopped nuts - I used pecans, but walnuts or macadamias would be great, too.
14 oz. sweetened condensed milk
10 oz. Skor toffee bits

Stir together flour and brown sugar. Cut in butter until mixture resembles coarse crumbs. Add egg and mix well. Stir in 1 1/2 c. chocolate chips and all of nuts. Reserve 1 1/2 cups of this mixture and press remaining into a greased 9x13 inch pan. Bake for 10 minutes at 350. Pour milk over hot crust and top with 1 1/2 cups toffee bits. Sprinkle remaining crumbs over top plus remaining chips. Bake 25-30 more minutes. Top with remaining toffee bits.