Gently pour in the half and half to the tomato vodka mixture and whisk together until thoroughly combined. If the mixture is a little runny, allow it to simmer for a few minutes until it thickens up. If it's too thick, add a little bit more cream.
The vodka will add punch and enhance the flavors of the sauce but not take over. If the alcohol flavor is too strong and pronounced for your taste, just allow it to simmer a little longer.
Season with salt and pepper to taste.