Yes, he did bake the muffins himself. From measuring the ingredients until mixing up everything. I just helped him reading the recipe, broke the egg, and folded the batter at the end of the process.
At first he mixed all the dry ingredients
And then mixed the wet ingredients
And spent 25 minutes standing in front of the oven, watching his first handmade muffins
It is YUMMY. Seriously, and he was very proud of himself!