In a blender, add the cottage cheese and milk, and blend until smooth and creamy.
1 cup whole milk, 3 cups small curd cottage cheese
Meanwhile, begin cooking the pasta for 1-2 minutes under the package directions until it's al dente. The pasta will continue to cook in the sauce, so we want it to be slightly undercooked. Make sure to reserve at least 1 cup of pasta water for thinning the sauce later!
16 ounces fettuccine pasta
In the same pan you cooked the chicken in, add butter, followed by the onions with a pinch of salt. Cook until the onions are softened and translucent, about 5-7 minutes. Then, add in the garlic and red pepper flakes. Stir often, and cook until the garlic is fragrant about 1 minute.
2 tablespoons unsalted butter, 1 large yellow onion, ½-1 teaspoon kosher salt, ½ teaspoon red pepper flakes, 12 cloves garlic
Reduce the heat to low, then pour in the blended cottage cheese mixture. Stir to combine and heat through.
Begin adding the parmesan cheese in small handfuls, stirring until fully melted and combined between adding each handful. Once completely melted, add in black pepper and parsley, and adjust the seasonings to taste.
4-5 ounces freshly grated Parmesan cheese, parsley to garnish, ½ teaspoon black pepper
Now, add in the cooked pasta with a bit of pasta water, and toss to combine until the sauce coats the noodles. Top with chicken, and more parsley, and garnish with more cheese. Enjoy!
½-1 cup reserved pasta water to help the sauce coat the noodles
Store leftovers in an airtight container in the fridge for up to 4 days. Reheat the pasta gently on the stovetop with a splash of pasta water or broth. We don't recommend freezing this recipe.