Sweet and Sour Crockpot Ribs

1 cup brown sugar

1/4 cup flour

1/3 cup water

1/2 cup vinegar

2 tablespoons soy sauce

1/4 cup ketchup

1/2 teaspoon ground ginger

1/4 teaspoon garlic powder

3 pounds pork spareribs

Mix brown sugar and flour in a saucepan.

Add water, then vinegar, soy sauce, ketchup, ginger, and garlic powder. Cook and stir over medium heat until boiling and thickened.