Preheat the oven to 180°C (356°F).
In a bowl, mix whole wheat flour, baking powder, and salt.
Add chopped nuts and cinnamon powder, then mix well.
Add cold butter and mix by hand until the mixture becomes crumbly.
Pour in milk and honey, and mix until the dough comes together into one mass.
Flatten the dough and divide into desired sizes.
Transfer to a baking pan and bake for 20~25 minutes.
Cool the baked scones.