Doggie....In fact, my mum allowed him to mess with her pineapple tart dough and cutters from 14-15months as he was sitting with us in his highchair while we were making pineapple tarts. And my mum was commenting that all of us was like my boy when we were young while the women in the family baked. So I started him from very young about 18months. Instead of playdough at home with me and him, we bake cookies and share with my neighbours when we were still in Singapore. My neighbours and their children adores him so it was fun for him. And we also did some cakes and then baked pasta and baked rice. But do prepare for the mess during the initial period, so with lots of paper covering the floor area, the table etc.
Now that his hand and eye coordination are better, instead of straight drop cookies, he decided he wanted to do like playdough when he cut with a cutter which he plays in preschool with friends. So I just let him experiment with the cutters that I bought basically for him. Now I only covered the table with paper so it is easy for me to clear away the flour and clean up faster.
Our next experiment will be either:
1) pizza with homemade pizza dough
or
2) making bread in the oven with his selection of filling