2 tablespoons vegetable oil
1/4 cup chopped onion
1/2 teaspoon ketchup
1 liter beer
1 liter beef broth
5 tablespoons whole milk
2 tablespoons white sugar
1 teaspoon dried sage
1 teaspoon salt
1 teaspoon dried oregano
salt and pepper to taste
2 tablespoons all-purpose flour
1 tablespoon cornstarch
1/2 teaspoon mustard seed
Place the oil and onion in a small saucepan over low heat and cook, stirring occasionally, until onion is tender.
Stir in the ketchup, beer, beef broth, white sugar, sage, salt, oregano, salt, and pepper; bring to a boil. Reduce heat to low, cover, and simmer for 20 minutes.
Stir in the flour, cornstarch, mustard seeds, and salt and pepper; bring to a boil. Reduce heat to medium low, cover, and