Preheat the oven to 400 degrees.
Place the crackers in a single layer in a small baking pan.
Cook brown sugar and butter in a saucepan over medium-high heat until butter is completely melted and mixture comes to a rapid boil.
Pour over crackers and spread out with a wooden spoon or brush making sure to cover all the way to the edges of the crackers.
Bake 5 minutes or until topping is golden brown.
Remove from oven and immediately sprinkle with chocolate chips.
Turn the oven off and place the pan back in the hot oven for 1 minute to soften the chocolate chips.
Remove from oven and spread chocolate evenly over the crackers.
Sprinkle with nuts.
Allow the mixture to cool completely until the chocolate has re-solidified. Break into pieces.