Shrimp / Crab Stock

Ingredients (10)

• 4 tbsp unsalted butter
• 2 tbsp vegetable oil
• 2 lbs shellfish shells
• 1 cup onion
• 1 cup celery
• 1 large leek
• 1 tsp smoked paprika
• 1 tsp Kosher salt
• 3 cups white wine
• 3 quarts water