Amaranth is the second of my Holy Trinity of super-nutritious edible weeds. It is a creature of hot weather, and in my garden it’s appearing everywhere right now. Like lambs-quarters it will get huge if allowed to, and unless you have limitless room, your job is not to allow it to.
Consult any good wild-foods guide to identify it, and then assess how much of it you have. If your response is “OMG, it’s everywhere!” then don’t worry about propagating it. Your soil has plenty of seeds. If there are only one or two plants, proceed as for lambs-quarters the first season, and you will have amaranth in perpetuity. I have two varieties, one with smooth stems and one that forms small but unpleasant spines at the leaf joints, and I try to keep the spiny kind from ever going to seed.
Pick them when they’re about a foot high and have a nice large umbrella of leaves on top. I have no interest in eating stems, and I pull off the topmost part with all the largest leaves and add the rest of the plant to the mulch, taking care that it’s completely uprooted.
The greens are fairly mild but have a slight touch of the earthy flavor that’s so pronounced in beet greens. When grown in prime soil the flavor verges on meatiness in a delicious way, and my favorite way of cooking the greens adds other meaty umami flavors.
Wash a mixing bowl full of loosely packed leaves well and wilt them in a small amount of water, stirring frequently over fairly high heat until the leaves all look “cooked.” Drain them, saving all the cooking liquid. Return the cooking liquid to the pot and boil hard to concentrate it to a very small amount, maybe a couple of tablespoons (don’t turn your back on the pot or it will scorch.) Pour into a little bowl and save.
Chop 6 big green onions. Make a basic separation between white and green parts, but don’t get obsessive about it. Separately chop 6 big cloves of garlic. Heat about a quarter cup of olive oil in your largest skillet and cook the white parts over medium-high heat, stirring frequently. When they begin to look a little translucent and “cooked,” add the green parts, cook another couple of minutes, add the garlic, lower the heat to medium, and cook a few minutes more. Meanwhile, put the lump of blanched greens on a cutting board and chop fairly finely in both directions.
When the garlic looks cooked but has not colored at all, add a handful of pitted chopped oil-cured olives to the sautéed mixture and cook another minute.
Add the cooked chopped greens, the tiny amount of cooking liquid, a teaspoon of Spanish smoked paprika or, if you like heat, the same amount of ground chipotle chile. Add a small handful each of chopped parsley and chopped fennel fronds. If not cooking for vegetarians or vegans, add a smashed anchovy fillet or a dash of fish sauce. Cook the mixture over medium-low heat for at least 20 minutes, periodically turning it to get it all completely cooked (a spatula works well.) Taste it, salt to taste, and cook a few more minutes to let the salt blend in. Serve drizzled with good olive oil as a side dish, or fill an omelette with it and add some feta cheese, or bake in phyllo to make a hortapita or little spanakopitas, or do whatever else you fancy with it. Back when I ate bread, I used to love to smear this stuff on slices of grilled baguette and put some grated Parmesan and pine nuts on top. I can remember once baking it in thin bread dough with a raw egg on top, so that when baked in a hot oven the egg came out cooked. You can add cooked chickpeas and bits of cooked meat for a real peasant dinner. It freezes well in vacuum-sealed bags to keep you healthy all winter. When served next to beef or pork, I top each serving with a bit of butter to add to the general animalic savor. I like to have it in the refrigerator for a super-healthy lunch, and it seems to taste best at room temperature.
Incidentally, the main reason for a poor result is not cooking it long enough. If it tastes grassy, keep going until it tastes good. Undersalting is another problem. Add salt cautiously because of the salty olives, but add enough.
If you don’t have a wild good guide that you like, get John Kallas’s “Edible Wild Plants: Wild Food From Dirt to Plate” and you will be glad you did.