Preheat oven to 350 degrees

Line a 10 x 14 rimmed baking tray with aluminum foil and spray with cooking spray. Arrange saltines in an even layer on the baking tray.

In a medium sauce pan, bring brown sugar and butter to a boil over medium heat. Stirring constantly. Once boiling, boil hard for 3 minutes, stiring the whole time. Remove from heat and allow to cool one minute then stir in vanilla and salt.

Pour sugar and butter mixture over top of saltines and spread evenly. Use an offset spatula to push mixture iover the corners of the saltines so that they are evenly coated. Place saltines into 350 degree oven and bake for 12-15 minutes. Sugar mixture will bubble up around the saltines. Carefully remove from the oven.

Allow the candy to cool slightly (1- 2 minutes) then sprinkle the chocolate chips over top of the candy. Wait a minute or two then use an off-set spatula to spread the now melted chocolate evenly over the candy. Don't press too hard to avoid pushing the chocolate into the soft candy. Sprinkle toppings over top of melted chocolate and allow the candy to cool completely and harden - refridgerate several hours or overnight. Break into chuncks or cut into pieces and serve. Will keep for several days in an airtight covered container for up to 2 weeks.