- Line a muffin tray with clingfilm.
- Mix the krispies and butter well, then push into the base and sides of each muffin hole. Cover and stick in the freezer for half an hour.
- Meanwhile, beat the cream cheese, followed by the peanut butter and milk til smooth.
- Mix in the lemon, then gently fold in the cream.
- Spoon into the pie bases, adding a few Smarties on top to decorate.
- Return to the freezer for at least 6 hours to set.
You can eat these straight from the freezer :-)