theres literally thousands out there on the net, theres also plenty of youtube tutorials out there.
most involve oats, milk, peanut butter, honey and whey, then you can add any nuts, or dried fruit you like into the mix.
Ingredients:
120g oats,
100g peanut butter,
2-3 scoops of whey
125ml skimmed milk,
Tablespoon clear honey (15g).
Directions:
Whey and oats into large bowl; mix together,
Add milk and peanutbutter and mix together until evenly mixed,
Add honey and stir evenly through mixture.
Line tray with grease proof paper,
Spread mixture onto paper (2-3cm thickness),
Place in fridge for 20-30mins.
Pre-heat oven to 190 degrees C (gas mark 5),
10 minutes in oven,
Remove, slice and leave to cool.