TL;DR Simmer aromatic vegetables, garlic, herbs, and water about an hour. Strain. Use for soups, grains, and sauces. Freeze extras.

Steps

  1. Optionally sauté onion, carrot, and celery in olive oil 5 minutes for deeper flavor.
  2. Add water, garlic, peppercorns, bay, herbs/scraps, and optional salt.
  3. Simmer gently 45–75 minutes (not a hard boil the whole time).
  4. Strain, cool, and store.

Related: Whole-food meal prep.