3 tbsp. flour
1 c. cold water
3 tbsp. salad oil
1/4 c. vinegar
1 tsp. salt
1 tsp. sugar
1/2 tsp. paprika
1 1/2 tsp. prepared mustard
1 tsp. bottled horseradish
1/2 tsp. Worcestershire sauce
1/4 c. ketchup

Make a paste of flour and water in a saucepan. Place over low heat and stir constantly until thick and clear, about five minutes. Add all the remaining ingredients. Beat with a rotary beater until smooth and well blended. Store in tightly covered jar in a cool place. Shake well each time before using.