Saltine Toffee

4 oz saltine crackers
1 cup butter
1 cup dark brown sugar
2 cups semisweet chocolate chips
3/4 cup chopped pecans (if desired)

Preheat oven to 400 degrees.
Place saltine crackers in a single layer on a foil-lined cookie sheet.
In a saucepan combine the sugar and butter.  Bring to a boil and boil for 3 minutes.  Immediately pour over saltines and spread to cover crackers completely.
Bake at 400 degrees for 5-6 minutes.  Remove from oven and sprinkle chocolate chips on top.  Let sit for 5 min.  Spread melted chocolate and top with chopped nuts.  Cool completely (chill in refrigerator or freezer) and break into pieces.  Store in airtight container in fridge.