First, line a baking sheet with tin foil. This will help keep the mess at bay and will make for fast cleanup. Then, heat the oven to 335 degrees.
Lay out the 40 gluten free crackers on the pan.
Next, melt the butter in a pan on low and once fully melted add the vanilla and brown sugar then whisk until well combined. Bring to a bubble for about 3-4 minutes and then pour over the crackers and slip into the oven for another 3-4 minutes.
Once the pan comes out of the oven, cover with chocolate chips and let it sit for 3-4 minutes (allowing the chips to melt) then spread and top with pecan pieces. Chill for an hour, crack and eat up.