Pressure Cooker Beef Stock

• 1 pound beef bones, or more as desired
• 1 large sweet onion, unpeeled and cut in half
• 4 large carrots, cut into 4-inch pieces
• 4 ribs celery, cut into 4-inch pieces
• 1 bunch flat-leaf parsley
• 4 cloves garlic, halved
• 1 tablespoon salt
• 1 teaspoon whole black peppercorns
• 1 teaspoon dried thyme
• 2 bay leaves
• 6 quarts water, or as needed

1. Preheat oven to 425 degrees F (220 degrees C).
2. Place beef bones on large baking sheet; bake for 15 minutes. Add onion halves to baking sheet; bake 45 minutes more.
3. Place roasted bones and onion in a pressure cooker with carrot, celery, parsley, garlic, salt, peppercorns, thyme, and bay leaves. Pour water up to the 6-quart mark inside pressure cooker; cover with lid and cook according to manufacturer's instructions, about 1 hour. Remove from heat; open pressure cooker carefully.

beef, sweet onion, carrots, celery, flatleaf parsley, garlic, salt, whole black peppercorns, thyme, bay leaves, water

Taken from www.allrecipes.com/recipe/246121/pressure-cooker-beef-stock/ (may not work)