Savory Wild Rice Stuffed Onions

• 8 depending on which onions you use (servings)
• 6 vidalia onions
• 4 layers
• 3 garlic (cloves)
• 1 apple
• 1 vegetable stock
• 1/2 shell
• 1/4 unch off both ends of the onion
• 120 gr wild rice
• 85 gr mushrooms