Siberian Sauce - cooking recipe

Ingredients

3 Tbsp. butter
2 Tbsp. flour
1 c. beef stock
salt
peppercorns
1/2 tsp. chopped chives
1/2 tsp. mustard
1 Tbsp. horseradish
1/4 c. cream
1 tsp. lemon juice

Preparation

Melt butter, add flour, blend and gradually add the beef stock.
Stir in seasoning, chives, mustard and horseradish.
Cook for 2 minutes.
Strain.
Add cream and lemon juice and bring to a boil.