I am from Milwaukee and used to get a double malted chocolate shake from the ice cream stand across from the airport. They were fabulous! This was back in the late 70's and early 80's. I remember they would put in 2 scoops of a powdered malt. I wonder if it was Horlick's. With all the breweries around, I wasn't sure what they used. I will have to check this out. Thanks!