Garlic & Onion.
In one form or another they are the basis of almost EVERYthing that I cook. Both garlic and onion are so versitle that they can not only go in any recipe, but they make for a great marriage of flavor. You'll notice a lot of those ingredients in my recipes, also the measurements are rough, instead of being exact, I tailor the flavor to my liking, and I hope that you'll take them and do the same.