
Place spaghetti in boiling water, stir. Cook until done.

Pour the cream into a saucepan and heat over medium heat for 3 minutes. Do not bring to a boil. Add the processed cheese to the cream in small portions and stir until dissolved. Pour in the grated cheese and butter, stir well. Add salt and pepper. Stirring, cook over medium heat for 5 minutes until thickened.

Add spaghetti to the sauce, mix well.