Ingredients for - Ham Sauce (Mustard Sauce)

1. White sugar ½ cup
2. Apple cider vinegar ½ cup
3. Condensed tomato soup ½ (10.75 ounce) can
4. Dry mustard powder 1 tablespoon
5. Egg yolks 3
6. Butter, melted ⅓ cup
7. All-purpose flour 1 tablespoon
8. Salt 1 pinch

How to cook deliciously - Ham Sauce (Mustard Sauce)

1 . Stage

Bring about 3 inches of water to a simmer in the bottom of a double boiler. Whisk together the sugar, vinegar, tomato soup, mustard powder, egg yolks, and melted butter in the top of the double boiler. Transfer 1/4 cup of the mixture to a small bowl; mix in flour until smooth. Whisk flour mixture back into mustard sauce; combine thoroughly. Cover and turn heat to medium-high.

2 . Stage

Cook sauce until thick, approximately 30 minutes; stir occasionally. Turn heat to low and simmer sauce to hold.