Originally Posted by Caine
Hands down, it's my apple slicer/corer. Great for slicing an apple for a small child's lunch, and for cutting up apples for an apple pie. I just bought a new one a few months ago after my first one self-destructed after almost twenty years of continous use. Papmered Chef wants $11.95 for one, and Le Gourmet Chef sells them for $2.99!
I love those! I have one and it makes life so much easier. I eat a lot of apples and having them instantly sliced and cored is so handy. It's hard to have an excuse for not getting enough fruit and veg with gadgets like that!
I'd say one of my favourites (aside from the aforementioned apple corer/slicer) would be my immersion blender. It makes pureeing soup so easy and prevents the huge mess of transferring hot soup to a blender and so forth. It's also good for mashed potatos, whipping egg whites and cream.