Put the grated horseradish into a small earthen cooking vessel; add the flour, salt, paprika and butter; pour in the cream and let cook until thick and smooth.
2
Keep stirring constantly.
3
Move to the back of the stove and add the egg yolk, stirring rapidly.
4
Cook for 30 seconds and serve at once.
5
This sauce may be eaten as a relish with hot roast or boiled beef
