Comments: Serve over poached salmon

2	tbl.	butter or margarine
2	tbl.	all purpose flour
1	cup	milk
1/2	cup	pureed fresh spinach* (about 1/4 lb.)
1		egg yolk
1/4	cup	half and half
1/2	tea.	salt
1/2	tea.	white pepper

• Melt butter in a heavy saucepan over low heat; and flour, stirring until smooth. Cook 1 minute, stirring constantly.
• Gradually add milk; cook over med.heat; stirring constantly until mixture is thickened. Add spinach; cook 1 min., stirring constantly. Pour mixture into container of electric blender; process till smooth. Return to saucepan.
• Combine egg yolk, half and half. Gradually stir about 1/4 of hot mixture into egg yolk mixture; add to remaining hot mixture, stirring constantly. Cook over med. heat for 1 min., stirring constantly. Stir in salt and pepper.
• Yield 1 1/2 cups

  *Frozen, chopped spinach, thawed and drained may be substituted for the fresh.