Bring a large pot of salted water to a rolling boil—this is your pasta water, so season it generously like the sea. Add the linguine and cook according to package directions until al dente, about 9-11 minutes, stirring occasionally to prevent sticking. Reserve 1 cup of the starchy pasta water before draining; this liquid is essential for adjusting the sauce consistency later. I always reserve extra pasta water because it's liquid gold for pasta sauces—the starch helps everything emulsify beautifully.

While the pasta cooks, combine the cottage cheese, freshly grated parmesan, butter, minced garlic clove, salt, pepper, and nutmeg in a blender. Blend on high speed for 1-2 minutes until the mixture is completely smooth and creamy with no lumps—the key to a silky sauce is thorough blending. I find that freshly grated parmesan makes a noticeably smoother sauce than pre-shredded varieties because it blends more uniformly without anti-caking agents.

Return the drained linguine to the pot and pour in the blended sauce mixture from Step 2 along with 1/2 cup of the reserved pasta water. Place the pot over low heat and stir constantly for 3 minutes, allowing the heat to gently warm everything and the pasta water to help the sauce coat every strand evenly. If the sauce seems too thick, add a splash more of the reserved pasta water until you reach a silky, pourable consistency that clings to the pasta.

Divide the creamy pasta among serving bowls or plates, working quickly while everything is still hot. Top each portion with fresh parsley and a small handful of freshly grated parmesan cheese, then serve immediately.