1 (3 to 5 lb.) rump roast
1 pkg. onion soup mix
1 can jellied cranberry sauce
2 tbsp. softened butter
2 tbsp. flour

Rinse roast and pat dry. Sprinkle the onion soup mix in the bottom of crock-pot. Add roast. Spoon cranberry sauce over and around roast. Cover and cook on low for 10 to 12 hours. Remove roast while thickening gravy. Turn on high. Blend soft butter and flour into a paste and whisk into gravy. Cover and cook 10 minutes on high until thick. Slice roast into 1/4-inch slices and serve with gravy. Slices can be frozen in gravy in plastic freezer bags.