Slow Cooker Onion Soup

By Plain ole Bob

4.29 / 5

15min

4h 15min

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¼ cup butter melted
1 large sweet onion (such as Vidalia®) cut into thin slivers
1 small red onion cut into thin slivers
2 cloves garlic minced
4 cups beef stock
3 tablespoons brandy
2 teaspoons soy sauce
2 teaspoons Worcestershire sauce
salt and ground black pepper to taste
2 cups Italian-style seasoned croutons
3 slices provolone cheese