April might seem a strange time of year to be stocking up on dried beans, but that’s what I’ve just done. That’s when Rancho Gordo offers the new season’s crop of its excellent heirloom beans. Besides, around here, April produces enough wet, chill, windy days to make us grateful for occasional warm, solid, rib-sticking dishes.
Accordingly, I just bought six pounds of beans: four old favorites: Cranberry (aka Borlotti), Domingo Rojo, Midnight Black, and Santa Maria Pinquito; and two varieties new to me this year: Snowcap and Whipple. To début my new supply, I wanted to use some of the cranberries in a big vegetable soup.
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Rancho Gordo’s own cookbook, Heirloom Beans, has a recipe for Borlotti Minestrone with Arugula Pesto. It is quite untraditional, even for this highly variable Italian vegetable soup. No tomato, potato, carrot, celery, or – an Italian essential – pasta. Instead, it has two ingredients I’ve never seen in minestrone: bulb fennel and cabbage; and, for serving, a nut-less pesto sauce based on baby arugula. Interesting, and surely worth a try.
The recipe calls for two cups of cooked beans, so that was my first task. Following RG’s basic bean cooking recipe, I soaked a cup of cranberry beans in tepid water for just four hours. When they’d doubled in bulk, I softened small amounts of chopped onion, celery, and carrot in olive oil in a big soup pot, stirred in the drained beans, and added fresh water to cover them generously.
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I gave them five minutes at a hard boil, covered the pot and simmered it, stirring occasionally, until the beans were tender. They were so fresh that that took only an hour. Then I salted them. Meanwhile, I’d prepared the other vegetables for the soup. Clockwise from the beans in their broth, below, are: half a head of Savoy cabbage, sliced; about half a cup of sliced onion; three chopped garlic cloves; half a pound of cut up green beans; and a whole medium-sized fennel bulb, sliced.
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After washing and drying the pot I began putting together the soup.
- The onion, garlic, fennel, and a pinch of salt went into the pot first, with some olive oil, and cooked for 10 minutes, until they began softening.
- Then came the cabbage, with another pinch of salt, to be stirred and cooked for 5 minutes, until it wilted.
- Next, I stirred in 5 cups of chicken broth (made from bouillon cubes), brought it to a boil, turned down the heat, and simmered the pot for 15 minutes.
- Finally, in went the green beans and cranberry beans with their broth.
Fifteen more minutes of simmering, a little salt and pepper, and the soup was done.
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It was still only late afternoon, so I pushed the soup pot to the back of the stove until dinner time, and moved on to making the pesto.
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To start, its recipe wanted three cloves of garlic to be pounded to a paste in a mortar. This pounding was alleged to make the garlic “mellow and sweet,” but my garlics refused to cooperate. The best I could achieve was smashing and squishing. Oh well.
I tossed the garlic pieces into the food processor along with 4 ounces of baby arugula, ½ cup of chopped flat-leaf parsley, and a pinch of salt. I processed that until it was nicely chopped. Then, with the machine still running, I drizzled in ⅓ cup of olive oil. Stopped the machine, scraped down its sides, then added ½ cup of freshly grated parmigiano and 2 teaspoons of lemon juice.
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That looked like quite a lot of pesto, considering that the soup itself was to serve only 4 to 6 and the pesto was only to be dolloped on top of each bowlful. But we’d see how it all worked out.
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Here is a bowl of the minestrone before the pesto went in. Served just like this, it’s a good, sturdy, down-home dish, with an unexpected set of flavors from the fennel and cabbage, which matched well with the richness of the beans.
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Tom chose to forgo the pesto, seasoning his bowlful with the classic minestrone additions of hot red pepper flakes, olive oil, and grated parmigiano. That was fine for him. I, of course, a great lover of arugula, had to try the pesto, so I added a medium-sized blob to my bowl.
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Stirred in, the effect was fascinating. The herbal tang of the arugula, the piquancy of the garlic, and the salt-sweet-fruitiness of the parmigiano all blended in, intensifying the character and complexity of the soup. I’ll call it a successfully different sort of minestrone.
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A word of caution, however: Since there was so much pesto, I more than doubled the amount of it that I added to my second bowlful. At first the soup tasted even better with it, but once finished, the garlic’s pungency flared up wildly. Its “afterburn” stayed on my palate for hours. Maybe I should have worked harder at pounding those garlic cloves? You can have too much of a good thing.