¼cupfinely grated parmigiano-reggiano cheeseplus more for serving
¼cupheavy cream
Instructions
In a wide dutch oven or heavy-bottomed pan, melt 2 tablespoons unsalted butter over medium heat. Add 1 large onion(sliced) and a big pinch of salt and pepper, and stir to combine. Cover for 5 minutes.
Remove the lid, and lower the heat to medium-low. Add 5 sprigs fresh thyme, and saute onions for 18 - 25 minutes or until nicely golden brown. If needed, lower the heat to low to prevent the onions from browning too quickly.
Add 1 ½ teaspoons sherry vinegar and ½ cup dry white wine, and deglaze the pot. Use a wooden spoon to scrape up any bits stuck to the bottom. Bring to a boil, and simmer the wine until reduced by half, about 2 - 3 minutes. Season again with salt and pepper as needed.
Add 8 ounces dried pasta, and pour 3 cups vegetable broth and 1 teaspoon Worcestershire sauce over the pasta until fully submerged. Bring to a boil, gently pressing the pasta into the liquid as it softens. Cook uncovered, stirring frequently to prevent sticking, until the pasta is al dente and the liquid has reduced to a sauce, about 12 - 15 minutes.
Note: If the pan becomes dry before the pasta is tender, add hot water a splash at a time. If the pasta is nearly tender but the sauce is still watery, increase the heat briefly to reduce it, stirring frequently.
Remove from the heat, then stir in 1 tablespoon white miso paste, ¼ cup finely grated parmigiano-reggiano cheese, and ¼ cup heavy cream until combined. Discard the sprigs of thyme. Season once more with salt and a generous grating of black pepper.
Divide pasta amongst serving bowls and top with more grated cheese. Serve warm and enjoy!
Notes
Equipment: Use a pan wide enough to hold and cook the spaghetti.