These chocolate-peanut butter malts taste like rocky road ice cream since they are topped with marshmallow cream, chopped peanuts and itty bitty cookies. Once you learn how to make a malt, you'll always want to jazz up your ice cream in similar fashion!
In a blender combine half of the ice cream, 1/3 cup of the milk, the malted milk powder, and peanut butter. Cover and blend until smooth, stopping and scraping down sides as necessary. Add the remaining ice cream; cover and blend until smooth. If necessary, add enough of the additional milk to reach desired consistency.
To serve, divide ice cream mixture among glasses. Top each serving with desired toppers.