Melt the butter slowly at a low temperature. Put the oat flakes and nuts in a bowl and pour the melted butter over them, stir carefully and let stand for about 10 minutes.
Whisk the honey and eggs together. Add baking powder and salt. Carefully stir in the cooled oatmeal mixture. Finally fold in the chocolate cut into small pieces.
Place small heaps with two teaspoons on the baking sheet lined with baking paper. Bake for 12-15 minutes.