

It is a basic ingredient in mirepoix, which is used as a base for a variety of sauces, soups, gravies, and stews. It’s just one component of what is basically just a fresh vegetable mix. You can always just substitute whatever you have on hand or local that fits, just like you would with a stir-fry or fried rice. It’s less about the specific vegetables than it is about the way they are prepared and what they contribute. Onions and carrots add sweetness. Celery balances those with its saltiness. Celery and garlic feel to me like a bridge to the other proper herbs like parsley and thyme that usually go in the mirepoix I combine with a good roux to make gravy.










By ignoring the second half of their comment you’ve missed the subtly that “panel” is an overly broad term and there are several different kinds of panels that collect energy from the sun for human use, among them photovoltaics, panels for heating residential water (often seen as black roof panels with pipes), and complex mirror (aka reflective panels) arrangements for melting salts. All of them use panels in some form.