It's called Cracker Candy because of the base, but people often rename it Crack Candy because of its addictive properties.
1 1/2 sleeves Club crackers
1 cup packed brown sugar
1 stick butter
2 cups chocolate chips
1/2 cup peanut butter
1 cup crushed pretzels
Put crackers in a single layer on a cookie sheet. Bring butter and brown sugar to a boil, then pour over crackers. Spread to coat. Bake for 5 minutes at 350.
Sprinkle chocolate chips on top and drop peanut butter in spoonfuls scattered around the top. Spread evenly and sprinkle pretzels over the top. Chill for 30-60 minutes, then break into pieces.