Mustard sauce recipe please

skata, Apr 26, 2:59am
for tonight's corned beef.

hezwez, Mar 5, 2:07am
1 egg, 1/4c sugar, 1Tbsp flour, 1 tsp mustard powder, 1 cup of liquor from the corned beef (or water) 1/4 cup vinegar. Beat egg & sugar, add flour, mustard, pepper & salt then sit in the liquids. Cook until mixture thickens.
(provided by marsnvenus)