Oyster Soup

Ingredients

• 5 tbsp unsalted butter
• 2 dozen oysters
• ¼ cup plain flour
• 2 stalks celery, finely diced
• 1 brown onion, finely diced
• 1 ¾ cups milk
• ¼ cup cream
• Salt
• Freshly ground black pepper
• Tabasco sauce (optional)