Preheat the oven to 180 ° C. Line the recesses of the muffin tray with paper baking cases. In a medium-sized bowl, carefully mix the dry ingredients (flour, nuts, baking powder, baking soda, cinnamon and chocolate chips).
Beat the egg in a large bowl and whisk gently. Add sugar, oil and buttermilk and mix well. Add the dry ingredients and fold in briefly until moist. Finally, carefully fold in the cherries.
Pour 3/4 of the batter into the molds. Bake at 180 ° C on the middle rack for 20-25 minutes. A suggestion for decoration: After cooling, the muffins can be covered with a chocolate icing.