Chop the hazelnuts in a bag with a hammer and then roast them in a saucepan without fat until they turn light brown. Meanwhile, chop the rice cakes. Then mix all the dry ingredients in a bowl.
Caramelize the sugar in a saucepan and then add honey, oil and margarine. Let the mixture simmer and stir continuously until it is a homogeneous mass. Now put these in the bowl with the dry ingredients and mix everything well. Caution! Hot! As soon as everything is well mixed and cooled a little, distribute the muesli on trays and bake at 150 ° C for about 45 minutes.
Then the muesli is super crispy and delicious, especially with milk or yogurt.