How to make whole wheat cinnamon muffins

• Mix the soft butter with sugar.
  75 g butter, 100 g sugar
• Meanwhile, combine flour, baking powder, cinnamon, and nutmeg.
  190 g whole wheat flour, 1.5 teaspoons baking powder, 0.5 teaspoon cinnamon, 1 pinch nutmeg
• Add the egg to the butter mixture and mix briefly,
  1 egg
• Add about half of the flour and milk - mix, then add the rest of the flour and mix briefly - just until combined.
  120 ml milk
• Spoon the batter into muffin cups - first put one tablespoon of batter into each.
• Spoon a teaspoon of Nutella onto the batter, then cover it with another tablespoon of batter.
  8 teaspoons chocolate cream
• Bake for 5 minutes at 220 degrees (top/bottom heat), then reduce the temperature to 180 degrees and bake for about 15-17 minutes - until a skewer comes out clean.
• After baking, wait about 5 minutes, then dip the top of each muffin in melted butter, and then place it in a bowl with sugar mixed with cinnamon.
  50 g sugar, 2 teaspoon cinnamon, 3 tablespoons butter
• Set the muffins aside to cool.