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
