Lacinato kale simmered uncovered for twenty minutes with cannellini beans, brown butter and tomato paste. The beans break down enough to thicken the sauce on their own, so there is no flour and no cream.
2canscannellini beans15 ounces each, drained and rinsed
2clovesgarlicminced
1/2teaspoonred pepper flakes
1cantomato paste6 ounces
The Greens and the Finish
3cupslow-sodium chicken or vegetable stockplus up to 1 cup more as needed
12ounceslacinato kalestems stripped, leaves sliced into 1-inch ribbons
1teaspoonkosher salt
1/2teaspoonfreshly ground black pepper
1/4cupgrated parmesan cheeseplus more for serving
1teaspoonfinely grated lemon zestfrom about half a lemon
Equipment
Large Pan
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Instructions
Brown the Butter and Beans
Melt the butter in a large wide pan over medium heat and keep cooking it until it foams, falls quiet and smells nutty, about 3 to 4 minutes. The solids on the bottom should be the color of weak tea.
Tip in the drained beans and cook for 3 to 4 minutes, pressing a few against the side of the pan with a spoon so they break up and release their starch.
Build the Sauce
Stir in the garlic and red pepper flakes and cook for 1 minute, until fragrant but not colored.
Add the tomato paste and keep it moving for another minute, until it darkens a shade and smells sweet rather than sharp and tinny.
Braise the Kale
Pour in 3 cups of the stock and scrape the browned paste off the base of the pan, then add the kale in two or three handfuls with the salt and pepper, letting each batch wilt before the next goes in.
Simmer uncovered for about 20 minutes, stirring occasionally, until a ribbon of kale is completely tender with no squeak and the liquid coats the back of a spoon. Splash in more stock if the pan tightens too far.
Finish Off the Heat
Remove the pan from the heat, stir through the lemon zest and the parmesan, and check the seasoning, keeping in mind that more cheese goes on at the table. Serve hot with extra parmesan.
Notes
The butter: let it foam, go quiet, then smell nutty, about 3 to 4 minutes. A pale-bottomed pan lets you see the color; in a dark skillet you will miss it.Crush a few beans against the side of the pan before any liquid goes in. That released starch is what thickens the sauce, and skipping it is the usual cause of a watery result.Stock: start with 3 cups and keep a fourth standing by. It should finish coating a spoon rather than pooling.Add the parmesan and lemon zest off the heat. Cheese stirred into a boiling pan turns stringy, and the zest is what lifts the dish after a long simmer.Make-ahead: it is better the next day. Cook it fully, hold back the zest and cheese, refrigerate, then reheat with a splash of stock and finish.Storage: 4 days refrigerated, 3 months frozen.Vegetarian: use vegetable stock. Vegan: olive oil for the butter and white miso for the cheese.Nutrition values are an estimate.