|Dry mustard||1 Teaspoon|
|Vegetable oil||1 1⁄2 Cup (24 tbs)|
|Lemon juice||1 Teaspoon|
Place first four ingredients in blender and beat a little.
Slowly add oil, drop by drop at first until it blends, then add the remainder.
Add lemon juice and vinegar.
If mixture should separate, beat 1 egg with 1 tablespoon water and slowly add.