Mix all ingredients in in small bowl. *See notes below for important tips.
Refrigerate for at least one hour.
Add egg yolks to food processor bowl.
Slowly stream in enough oil to make a thick emulsion.
Add remaining ingredients. Mix. *See notes below for important tips.
Refrigerate at least one hour.
Pro tip; Remove as much of the liquid from the prepared horseradish as you can. Either strain it in a fine mesh sieve or press your finger against the spoon to drain.Leftovers will keep refrigerated for up to 5 days.Do not freeze.