4. Melt butter and brown sugar and then pour this mixture over the crackers. Break the bark into pieces and enjoy. Option to make marbled The thickness is a matter of personal preference. Stir just until mixed. The bark can be kept in an airtight container at room temperature for up to 4 days or refrigerated for up to 2 weeks. Add walnuts and press in slightly. Notes One Piece 57 cal, 4 gm fat, 1.0 gm saturated fat, 6 gm carb, 0.7 gm fiber. Add in the walnut pieces and orange peel. Line a baking sheet with parchment paper use a spatula to make 1/4-inch thick layer. Refrigerate for an hour or so; then either break or cut into pieces. Pour out the chocolate onto the prepared sheet and allow it to fully cool. Place saltines on foil lined ... of spoon. Bake in preheated 400°F oven about 5 minutes or until bubbling. Place saltines on foil lined cookie tray.