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.
Stroopwafels are thin waffles with a syrup filling. The stiff batter for the waffles is made from flour, butter, brown sugar, yeast, milk, and eggs. Medium-sized balls of batter are put on the waffle iron. When the waffle is baked and while it is still warm, it is cut into two halves. The warm filling, made from syrup is spread in between the waffle halves, which glues them together. They are popular in the Netherlands and Belgium and sold in pre-prepared packages in shops and markets.
I hate myself for how much I loved this machine. I don't think anyone should have to spend $200 on a waffle maker, and I was actively rooting for another, more budget-friendly model to best or at least match it. But after a full day of testing and eating, I cannot in good conscience recommend any waffle iron more enthusiastically. None of the machines we tested even came close. The All-Clad has ruined all other waffle makers for me.