Bring a large pot of water to boil, while you make the cheese sauce. When water comes to a boil, add salt. Drop your pasta into the water at approximately the same time as you transfer your cheese sauce to the saucepan to heat. Watch the water temp and stir frequently as it will foam. Cook according to package directions and drain.

Combine cottage cheese, milk, nutritional yeast, cornstarch and salt and pepper to taste in a blender. Blend on high until completely smooth.

Transfer to medium sauce pan and turn on the heat to medium-low. Gently heat while stirring until mixture thickens and a streak remains when you wipe the back of a spoon with your finger. Do not bring to a full boil.

Lower heat and stir in shredded cheese. Stir in cheese powder, if using.

Combine pasta with sauce.

Serve.