Heat water in deep pan. Add salt and vegetable oil. Once water has boiled pour in the pasta cover with lid and let it simmer

Once water has significantly reduced, remove from heat. It should be al dente, not mushy. Drain pasta under hot water and set aside

In non stick pan add onions and cook until browned

Add tomatoes cook until they become paste like

Add heavy cream. Let mixture cook for a few minutes, add salt to taste. Remove from heat and set aside

Return the pasta on the heat. Add butter on top and let it melt tossing gently

Pour the creamy tomato mixture into the drained pasta. Gently mix. Add in the vodka and cook a few more minutes

Grate the parmesan/cheddar cheese on top of the pasta before serving