Line a baking sheet with parchment paper or foil.
Spread saltines over cookie sheet in a single layer. Set aside.
In a medium saucepan, melt butter and brown sugar over medium heat. Stir. Bring to a boil.
Stir continuously for 5 minutes. This mixture is very hot.
Carefully pour sugar mixture over the saltine crackers spreading evenly with a spatula. You will need to work quickly. This begins to set up and get sticky within a few minutes.
Bake at 350° for 8 minutes.
While crackers are in the oven, prepare your toppings. You will need to have these ready so you can work quickly decorating the top. Set aside.
Melt white Almond Bark in the microwave according to package directions.
After the crackers have finished baking, remove them from the oven. Pour the white Almond Bark over the top, spreading evenly.
Add your toppings as desired.
Place baking sheet into the refrigerator to set up.
Remove and break into pieces. Store in a zip-top bag or covered container in the refrigerator.