Spread a large sheet of waxed paper on the counter. Spray with non-stick spray.
Line a 15x10-inch sheet pan with foil, spray with non-stick spray.
Place crackers in the pan in a single layer.
Melt butter in a saucepan over medium heat. Add brown sugar.
Bring brown sugar and butter to a boil in a saucepan over medium heat. Boil 2 minutes.
Pour brown sugar mixture evenly over graham crackers in pan. Spread so it covers all the crackers evenly.
Bake at 350°F for 8 minutes.
Remove from the oven.
Melt chocolate in a microwave in 30-second increments, stir until smooth. Place melted chocolate in a zip-top bag. Snip a tiny corner off and drizzle chocolate back and forth over the crackers.
Spread chocolate candies and salt over the chocolate drizzle.
Quickly remove crackers to a sheet of waxed paper that has been sprayed liberally with non-stick spray. I like to use 2 spatulas to do this.