1. In a bowl, mix together peanut butter, sugar and milk until smooth and creamy
2. Add in cornflakes and thoroughly blend.
3. Drop by level tablespoons onto prepared cookie sheet.
4. In a preheated oven, bake at 250 degrees centigrade for about 6 minutes, until evenly browned
5. Allow to cool on wire rack.
6. Serve at room temperature.