Elevate your pasta game with this simple yet flavorful dish of shells coated in browned butter, miso, garlic and crushed pepper flakes. Topped with walnuts, sage breadcrumbs and Pecorino Romano, it's a rich and flavorful dish that will surprise everyone at your table.
Boil the pasta in salted water until al dente. Drain, reserving ½ cup of the cooking water.
For the breadcrumbs. Heat a large skillet over medium heat and add the olive oil. Once hot, add panko and walnuts, cook, stirring for 4 minutes until toasted and golden brown. Add chopped sage and cook for 1-2 minutes more. Season with salt and pepper. Remove from skillet onto a plate.
Heat the same skillet over medium heat, add butter. Lower the heat and cook for 2-3 minutes or until butter foams and starts to brown. Add garlic and olive oil, cook for 2 minutes until soft. Stir in miso paste, lower the heat to minimum trying not to burn miso or garlic. Add chili flakes, sage leaves and the seasoning.
Toss with pasta and add ¼ cup of the reserved cooking water. Now taste and adjust salt and pepper. Add extra cooking water to make more sauce, as the pasta will absorb it.
Serve immediately with crunchy breadcrumbs, pecorino and some extra chili flakes. Enjoy!