Malted milk powder is a fine pale yellow powder made from malted barley, wheat flour, and evaporated milk powder. It's typically added to milkshakes to make them extra creamy and give them a malty flavor. It can also be added to baked goods to provide a natural sweetness and maintain their soft texture. When toasted in the oven, the flavor of malted milk powder becomes much more pronounced and shines through in a cake like this one!