Stilton Dressing

Directions

1. 1
   In a small saucepan bring broth to a boil and add onion.
2. 2
   Remove pan from heat and steep mixture 10 minutes.
3. 3
   Pour liquid through a sieve into a blender and discard onion.
4. 4
   Add egg yolk, mustard, salt, pepper, Worcestershire sauce, and vinegar and blend in a food processor or blender until smooth.
5. 5
   With motor running, add oil in a slow stream, blending until emulsified.
6. 6
   Crumble Stilton.
7. 7
   With motor off, add Stilton and then blend until very smooth.
8. 8
   Pour dressing through a sieve into a bowl.
9. 9
   Dressing keeps, covered and chilled, 1 week.