In a large stockpot, heat the olive oil over medium-high heat. Add the onions, celery, carrots, bay leaf, peppercorns, and salt. Sauté for 10 minutes, stirring occasionally.
Add the chicken wings and cold water to the pot. Bring to a boil, then reduce the heat to low. Simmer for 2 hours, skimming the foam off the top of the stock as needed.
Strain the stock through a fine-mesh sieve into a large bowl. Discard the solids.
Allow the stock to cool before transferring to airtight containers. Store in the refrigerator for up to 5 days or freeze for up to 3 months.
Interesting Facts
Chicken stock is an essential ingredient in many recipes.
Making your own stock is a great way to use up leftover chicken parts.
Homemade stock can be used as the base for soups, sauces, and gravies.