1. Melt 6 tablespoons butter is a saucepan.
2. Add5 tablespoons flour.
3. Cook over very low heat for 5 minutes, stirring constantly and removing the pan from the heat from time to time to prevent the flour from browning.
4. Add gradually 2 cups hot milk and 1 cup hot cream.
5. Cook, stirring until the sauce is smooth and thick.
6. Remove the pan from the heat.
7. Stir in 2 cups diced ham and 1/3 cup pimentos, cut into thin strips.
8. Add a little of the hot sauce to 3 lightly beaten egg yolks.
9. Return the mixture to the sauce.
10. Sauté 3/4 cup green peppers, cut  into slivers and 1/2 pound sliced mushrooms in 2 tablespoons butter until tender but not brown.
11. Combine the two mixtures, correct the seasoning with salt.
12. Finish with 1/4 cup dry Sherry.

List of ingredients required:

• 8 tablespoons butter.
• 5 Tablespoons flour.
• 2 Cups hot milk.
• 1 Cup hot cream.
• 2 Cups diced ham.
• 1/3 Cup pimentos, cut into thin strips.
• 3 Egg yolks, lightly beaten.
• 3/4 Cup green peppers, cut into slivers.
• 1/2 Pound mushrooms, sliced.
• Salt.
• 1/4 Cup dry Sherry.