We considered looking at dual-purpose waffle makers with interchangeable plates such as the T-fal EZ Clean Sandwich and Waffle Maker (SW6100) but ultimately passed. Appliances that try to excel at two disparate tasks often fail at one, and from reading the reviews, it seems clear that this T-fal model—which is now discontinued—might make great sandwiches but fails to make excellent waffles.

This did the job, but it sure wasn't streamlined. Here is a photo from a World War II era training pamphlet. The subject was "How to use electrical appliances." Many rural households were just getting electricity due to the Rural Electrification Administration (REA) and the pamphlet was intended to get folks up to speed with the rest of the country. This photo shows the Government-approved method of "seasoning" a waffle iron (you put oil on it and let is burn in, creating the organic equivalent of Teflon). Any vegetable oil will do.
The Black+Decker Removable Plate Waffle Maker (WM700R) is a new model for 2016. You can take the plates out for washing, which is a huge plus, but unfortunately this machine fell short in several other ways during our testing. The indicator lights don’t tell you when a waffle is done, and it has no browning control. Plus, our waffles came out bready rather than crisp, and after a few rounds of baking, the handle got uncomfortably hot.
There are millions of recipes for waffles, but most batters fall into two distinct categories: yeast-raised (more commonly used for thicker Belgian-style waffles) and baking powder-leavened (also called "American"; think Bisquick and the like). That said, you can use yeast-raised batter in American-style waffle makers and American-style batter in Belgian-style waffle makers—the results will just be a little different than usual due to the differing shapes and sizes. Our lineup of contenders included both Belgian- and American-style machines, though for the sake of simplicity we eliminated "flip-style" models. (They tend to take up more space than other waffle irons and a perusal of anecdotal reviews indicated that they didn't perform any better.) We tested all of the machines using this crispy waffle recipe, minus the caramel coulis.
This illustration anthropomorphizes the Twin-O-Matic and notes that post-war demand for small appliances will be a "half billion dollars" (about $100 billion in 2005 dollars), and encourages dealers to sign up to sell Manning-Bowman appliances. This is actually a very sad artifact, because the Manning-Bowman company was in deep financial distress because they could not get materials -- particularly chrome -- during World War II. This was an attempt to sign up dealers so that credit and financing could be obtained to last out the materiel shortages imposed by the War. It did not work, and soon thereafter, Manning-Bowman sank into a sea of red ink. The company's assets, including its spectacular Art Deco designs, were sold to the Bersted Corporation of Fostoria, Ohio. Berstead watered down the designs and made low-priced "drug store" versions of many Manning-Bowman appliances. (The Sandwich Grill on our Kitchen Aplliances page is a good example of this "cheapening" process.) Alas, Manning-Bowman met an inglorious end, but it was merely a foretaste of the vast wave of shoddy appliances made in faraway dictatorships that suffocate the American marketplace today.