|Butter||1⁄4 Cup (4 tbs) (or margarine)|
|Whipping cream||1⁄4 Cup (4 tbs)|
|Eggs yolks||2 , beaten|
|Lemon juice||1 Tablespoon|
|Dry mustard||1⁄2 Teaspoon|
Place butter in 1-quart bowl.
Microwave on HIGH until melted.
Add remaining ingredients.
Microwave 1 minute to 1 minute, 30 seconds on '5', or until thickened, stirring halfway through.
Beat with wire whip or rotary beater until light and fluffy.
Serve with eggs, fish or vegetables.
Note: Over cooking will curdle sauce.