Pre-heat oven to 400 degrees.
Line a cookie sheet with the saltine crackers.
In a saucepan combine the sugar and butter,bring to a boil.Dissolve any lumps of sugar then immediately pour over the crackers,spreading it out as you pour.
Bake in the oven for 4-5 minutes. Remove from the oven and sprinkle the chocolate chips all over the top. Let it sit for 5 minutes then spread the melted chocolate,top with chopped nuts and let it cool completely before cutting into squares,enjoy!! :)