Preheat the oven to 350F then line a large baking sheet with aluminum foil. Spray with nonstick cooking spray then line with a single layer of side by side saltine crackers. Set aside.
In a medium saucepan combine the butter and brown sugar together over medium heat. Stir with a wooden spoon until the butter is fully melted and the mixture start to bubble. Set a timer and cook while constantly stirring for 3 minutes. Add in the vanilla extract and mix again.
1 cup butter, 1 cup brown sugar, 1 tsp tsp vanilla extract
Pour the mixture evenly over the saltine crackers, gently spread the mixture with the wooden spoon or a knife.
40 saltine crackers
Bake in the oven for 6 minutes. Remove from the oven and immediately sprinkle with the chocolate chips. Allow them to sit there and melt for 3-4 minutes before spreading it to create an even layer of melted chocolate on top of the saltine crackers.
2 cups milk chocolate chips, 1 cup chopped pecans
Sprinkle with the chopped pecans, m&m's, or Christmas sprinkles while the chocolate is still soft then allow it to set at room temperature for 1-2 hours. You can speed up the process by chilling it in the fridge of freezer. Slice and enjoy