Orange Roast Pork

1 (3-1/2 lb.) pork shoulder roast
1 onion, chopped
6-oz. can frozen orange juice concentrate
1/4 cup brown sugar
1 tsp. salt
1/4 tsp. pepper
2 Tbsp. flour
2 Tbsp. cold water

Trim roast of visible fat. Place onions in bottom of 3-4 quart crockpot. Sprinkle salt and pepper over roast and place in crockpot on top of onions. In small bowl, mix together thawed orange juice concentrate and brown sugar, and salt and pepper, and pour over roast.

Remove roast and onions from crockpot, cover, and set in low oven to keep warm. Skim fat from juices in crockpot. Then pour into large heavy pan. Blend flour and cold water in small bowl and add to juices in pan. Bring to a boil and cook, stirring frequently with wire whisk, until thickened. Serve gravy with roast and onions.