Brennan's Onion Soup Recipe

• 1 1/2 c. butter
• 4 c. sliced onions
• 1 3/4 c. flour
• 12 c. beef stock
• 1/2 tsp cayenne pepper
• 1 1/2 Tbsp. salt
• 1 x egg yolk
• 2 Tbsp. cream

1. In a six-qt soup kettle heat butter, add in onions and reduce heat to very low, cooking till onions are melted down.
2. Be careful not to brown in the first stage of cooking.
3. Add in flour and cook 5 - 10 min more, stirring occasionally.
4. Blend in stock, salt, and bring to a boil.
5. Reduce heat and simmer about 15 min.
6. Remove kettle from heat.
7. Beat together egg yolk and cream.
8. Add in a little of the soup and mix quickly, then add in to soup kettle.
9. Serve in soup c. with toasted rounds of bread or possibly croutons and sprinkle with grated Parmesan cheese, buttered breadcrumbs.
10. Brown under broiler flame and serve.

butter, onions, flour, beef stock, cayenne pepper, salt, egg yolk, cream

Taken from cookeatshare.com/recipes/brennan-s-onion-soup-92139 (may not work)