Preheat the oven to 400F.
Line a 12-hold muffin pan with paper cups (alternatively, brush them with oil or melted butter).
In a bowl, stir together the flour, baking powder, baking soda, salt, oats, nuts, chocolate candies and sugar.
Make a well in the center and add the egg, honey, milk and melted butter.
Stir just until moistened, about 10 to 12 strokes.
Divide the batter among the 12 holes of the muffin pan.
Bake at 400F for 22 to 25 minutes until the tops are lightly browned and a skewer inserted at the center comes out clean.