Clean and chop vegetables. Slice celery and mince leaves. Slice carrots on mandolin. The thinnest blade will take the least amount of time to cook. Peel and cube potatoes. Mince garlic.

Assemble all but last 3 ingredients in large (8 quart) pot.

Bay leaf, peppercorns, and possibly celery leaves may be added in a tea ball or large paper tea bag.