Toffee Bars - cooking recipe

Ingredients

1 cup brown sugar, firmly packed
1 cup butter
2 cups flour
1 large egg yolk
chocolate chips, to top

Preparation

Mix all ingredients (except chocolate chips) with hands until it forms a dough.
Pat into bottom of a 9x13 pan.
Bake at 375\u00b0F degrees for 25 minutes.
Sprinkle with chocolate chips.
Cover pan with a larger bread board to keep the heat inside.
Spread the chocolate when it has melted.
Cool completely before cutting.