Saltine Toffee

I made this for Christmas last year and it was probably some of the best toffee I have ever had. Yummy!

4 ounces saltine crackers
1 cup butter
1 cup dark brown sugar
2 cups semisweet chocolate chips
3/4 cup chopped pecans

1. Preheat oven to 400 degrees F (205 degrees C).
2. Line cookie sheet with saltine crackers in single layer.
3. In a saucepan combine the sugar and the butter. Bring to a boil and boil for 3 minutes. Immediately pour over saltines and spread t cover crackers completely.
4. Bake at 400 degrees F (205 degrees C) for 5 to 6 minutes. Remove from oven and sprinkle chocolate chips over the top. Let sit for 5 minutes. Spread melted chocolate and top with chopped nuts. Cool completely and break into pieces.