Place the whole milk, whipping cream, vanilla and trimmings/buds in a large pot and heat on low/simmer. It's important that you don't set the heat for anything over low/simmer, because you will get milk that has no potency otherwise. Simmer for 2 hours on low. Next, use a cheesecloth or fine strainer (like a coffee filter) to strain the milk once it's done simmering. This ensures that you don't have any unwanted plant matter in your milk concoction. It's better to pour the milk concoction into ice cube trays and freeze them, if you won't be finishing the milk within 48 hours, but if you and friends will finish it by 48 hours, then you can simply refrigerate and drink as you like. Enjoy!