We found this recipe on the back of the chocolate chip package. We have changed it a bit and added some of our own touches.
3/4 cup (1 1/2 sticks) unsalted butter, softened
1 3/4 cups flour
1/3 cup sugar
1/4 teaspoon salt
1- 10 ounce package dark chocolate chips (divided)
1- 14 ounce can sweetened condensed milk
1 teaspoon vanilla
1/2 cup chopped nuts
1/3 cup toffee pieces
1/3 cup shredded sweetened coconut (optional)
Preheat the oven to 350 degrees. Place the butter, flour, sugar and salt in a bowl. Mix until crumbly.
Put 2 cups onto a greased 9×13 greased baking sheet. Reserve the rest for the topping. Press to all corners with your hand or the back of a spoon.
Place in the oven for 10 minutes.
Melt 1 cup of the chocolate chips and the can of sweetened condensed milk over medium-low heat. Add the vanilla and stir. Remove the crust from the oven, spread the chocolate mixture over the crust.
In a small bowl combine, remaining crust, 2/3 cup chocolate chips, nuts and toffee bits.
Sprinkle topping over the chocolate. We added coconut on top also. It is optional.
Place back in oven and bake another 25-30 minutes.
Remove from the oven. Allow to cool, cut into squares and enjoy!