Preheat the oven to 400°F. Line two lined baking sheets with the saltines.
In a saucepan on low heat, add the butter and let it melt.
Add the brown sugar and stir to combine
Turn the heat to high until the mixture is boiling and let boil for ~30 seconds, stirring constantly. Remove from heat.
Pour the mixture evenly over the saltines.
Bake for 5 minutes.
Remove from the oven and evenly sprinkle the chocolate chips on top. Bake for another two minutes.
Once out of the oven, spread the warm chocolate all over the toffee.
Sprinkle the pecans on top.
Let cool until firm. Break into pieces and enjoy!
