For the homemade granola bar, melt the butter, add water and honey.
Bring everything to a bubbling boil and stir in the muesli. Line a small baking tray with baking paper and spread the mixture 3 cm thick on the tray.
Press the mixture firmly and cut into strips with a knife. Put the tray in the oven and bake the muesli bars at 200 degrees for 20 minutes.
Preparation Tip:
Who would like can refine his muesli bars of course still with nuts and spices.