2large leekswhite and light green parts only, thinly sliced and rinsed well
3garlic clovesminced
1 15-ouncecan butter beansdrained and rinsed
½teaspoonkosher saltplus more to taste
¼teaspoonblack pepper
¼teaspoonred pepper flakesoptional
¼cupreserved pasta waterplus more as needed
½cupchicken stock
½cupgrated Parmesan cheeseplus more for serving
1teaspoonlemon zest
1tablespoonlemon juice
2tablespoonschopped parsley or basilfor serving
Instructions
Bring a large pot of salted water to a boil. Cook the pasta until al dente according to package directions. Reserve 1 cup of pasta water, then drain.
While the pasta cooks, heat the olive oil and butter in a large skillet over medium-low heat. Add the sliced leeks and season with a pinch of salt and pepper. Sauté for 10-12 minutes, stirring occasionally, until very soft and jammy. If the leeks start to brown too quickly, reduce the heat.
Stir in the garlic and cook for 1 minute, until fragrant. Add the butter beans, kosher salt, black pepper, and red pepper flakes, if using. Cook for 3-4 minutes.
Gently mash about half of the butter beans with the back of a spoon to help create a creamy sauce.
Add ¼ cup reserved pasta water and ½ cup chicken stock. Stir until the leeks and mashed butter beans become creamy. Add the cooked pasta, Parmesan cheese, lemon zest, and lemon juice. Toss until the pasta is glossy and coated, adding more pasta water as needed.
Taste and adjust seasoning with more salt, pepper, or lemon juice. Serve topped with fresh parsley or basil and extra Parmesan cheese.
Notes
Be sure to rinse the leeks well after slicing because dirt can hide between the layers.
Use vegetable stock instead of chicken stock to make this vegetarian.
The sauce will thicken as it sits, so add a splash of pasta water or stock when reheating leftovers.
Did You Make This Recipe?
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