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Back in the kitchen, I broke the crowns into florets and prepared them for freezing. After blanching them for three minutes in boiling water, I plunged them into cold water to cool them quickly and fix their bright green color. Then I packed them into quart freezer bags.
When the steam dissipated and my bags of blanched broccoli were in the freezer, I still faced a pile of broccoli stems, feeling a mixture of annoyance and guilt. One stem I could have tossed to the chickens without much of an issue, but such a mountain of stalks as I faced that day had to be climbed.
I had been operating under the assumption that the stems are not only less tasty than the crowns, but offer fewer nutrients too, and are more labor-intensive to cook. But it turns out broccoli stems have nearly the same nutrients as the crowns, plus more fiber. Those nutrients include sulforaphane, a substance that has been shown to protect against several types of cancer. Broccoli is also suspected to help rid the body of toxins, thanks to a large study in a polluted area of China. So anything you can do to eat more broccoli, and throw away less, is going to be good for your body as well as your wallet.
While there is the extra labor involved in peeling the stalks, in some ways they are also more forgiving to prepare. They aren’t as easy to overcook as the florets, which turn a dark shade of green, and become mushy and bitter, while the stems only get sweeter with prolonged cooking.
As for the flavor, it’s neither better nor worse, but different. And delicious.
Since the fateful farmers market when I acquired all of that broccoli, I’ve made broccoli stem and scallop fried rice, broccoli stems with Ethiopian berbere spices, broccoli stem chips, Thai-style coconut curry with broccoli stems, broccoli stems with bacon, as well as my two favorites: broccoli stem soup and stir-fried broccoli stems with hoisin sauce. Not once during this binge did I feel that I was eating a 2nd class vegetable. Those stems were so good, in fact, that I think some different vocabulary is in order, words that convey the dignity and supreme edibility that these plant parts deserve.
Thus, I’m going to start calling them broccoli hearts, and the slices thereof: medallions. And today I’m the proud owner of a few bags of blanched broccoli heart medallions in the freezer, alongside the crowns. Knowing what I now know, don’t be surprised if I reach for them first.
Here are my two favorite recipes for broccoli hearts. Both can be made with fresh broccoli stems, or with broccoli heart medallions from the freezer.
(By the way, everything that can be said about broccoli stems also holds true for cauliflower stems.)
 
Stir-fried with hoisin sauce

Ingredients
5 broccoli stems
1 clove garlic, minced
2 tablespoons hoisin sauce
2 tablespoons soy sauce
1 tablespoon sugar
1 tablespoon chili flakes, or a crushed dried chili pepper (optional)
1 scallion, chopped
Oil or bacon, for the pan
 
Method
Peel and slice the broccoli stems. If you want to be extra fancy, slice them on an angle.
Cook the stems in oil or bacon for about five minutes, until soft, on medium heat.
While they cook, combine soy sauce, hoisin sauce and sugar.
Add the garlic and chili flakes, and stir it around. After about a minute, add the sauce mixture. Stir-fry for another minute. Remove from heat. Garnish with chopped green onions, and serve.
 
Broccoli stem soup
This soup has turned out to be the only way my kids will ever eat any form of broccoli. It works as a great chilled soup in summertime, and also would be lovely served warm in the colder months. It’s similar to vichyssoise, the famous French potato leek soup.

Ingredients
5 broccoli stems, peeled and chopped into medallions
2 medium carrots, sliced
2 medium potatoes, sliced
1 medium onion or leek, sliced
2 cloves garlic, minced
¼ cup red lentils
A pinch of fennel seeds
Beef, chicken or veggie stock
Cream, sour cream, or mayo as a garnish (optional)
 
Method
Add all of the ingredients to a pan, and cover them with stock by at least an inch. Grind in a generous amount of black pepper. Simmer until soft. Let cool to the point where it can be pureed. Puree. Serve with cream, sour cream, or mayo if desired.