German Potato Soup - cooking recipe

Ingredients

1 medium onion, chopped fine
1 clove garlic, minced
2 Tbsp. butter
1 Tbsp. flour
2 c. grated cooked potatoes
2 c. milk
1/2 c. chopped ham or bacon
1 large egg yolk
salt and pepper to taste

Preparation

Saute onion and garlic in butter until onion is golden.
Add flour, stirring until smooth.
Add potatoes and cook for 2 minutes.
Gradually add milk, stirring until smooth.
Add ham or bacon; salt and pepper to taste.
Add beaten egg yolk, stirring until creamy and soup is heated through.