In a mixing bowl, work the peanut butter, honey and milk powder together with a wooden spoon. Gradually add the oats and mix through to form a stiff mixture.
Roll into 10, small-walnut-sized balls, pressing firmly to prevent the mixture crumbling.
Eat straight away or chill, covered with clingfilm, for up to 3 days. The oats will get softer and easier to eat as they sit.
If you want to add to these, replace a tablespoon or so of the oats with chopped nuts or seeds of your choice. They are also very good rolled in grated chocolate to coat the outsides.
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