For anyone interested in malted milk powder and wanting to know what I use, it’s Carnation brand. They sell both regular and chocolate, but I almost always use the regular. The malted milk powder is usually with the hot cocoa mix or the ice cream stuff. I think in some places you can only find Ovaltine malted milk powder, which is the same thing (but different than regular Ovaltine).
Also, this is not the same as diastolic malt powder, which is used to make bagels.