- cooking spray
- 1 (4 ounce) packet saltine crackers, or as needed
- 1 cup white sugar
- 3/4 cup butter
- 1 (12 ounce) bag chocolate chips
- chopped walnuts
- Preheat oven to 350 degrees F (175 degrees C). Line a jelly roll pan with aluminum foil; lightly spray with cooking spray.
- Arrange crackers in the prepared jelly roll pan.
- Mix sugar and butter together in a saucepan; bring to a boil, stirring constantly, until sugar is dissolved, about 1 minute. Pour butter mixture over crackers.
- Bake crackers in the preheated oven until lightly browned, 5 to 6 minutes. Remove from oven.
- Sprinkle chocolate chips over the hot crackers; spread chocolate chips with a rubber spatula until melted. Top with walnuts. Refrigerate chocolate bark until set; break into pieces.