Cut in two and separate 4 1/2 to 5 pounds spareribs. Boil for 35 minutes and drain.

Sauce
1/3 cup prepared mustard
1/3 cup dark molasses
1/3 cup soy sauce
1/3 cup brown sugar
4 tablespoons vinegar
3 tablespoons Worcestershire sauce
1 teaspoon Tabasco sauce

Mix Sauce ingredients. Dip drained ribs into sauce. Place in a baking pan. Pour remaining sauce over ribs. Cover pan; put into refrigerator overnight or at least 6 hours. Turn ribs in pan with sauce at least once while marinating. Do not drain.

Place pan in oven at 350 degrees F for 1 to 2 hours, turning often.