I am happy to hear that other mums and grannys are baking and cooking with children.
Watson that photo of your grand daughter could be of my daughter, covered in batter with a huge smile on her face.
My original question was about baking, but I can add, I learned the following from my grandmothers:
Canning
Making jam
Spinning and weaving, plus dying with natural dyes.
Identifying flowers in the garden as well as wild flowers
Pruning fruit trees and ornamentals
Growing veggies
How to start a fire in a wood stove, fireplace and bonfire
I miss them both.
Both tried to teach me to knit and crochet and gave up, I eventually learned to crochet. Neither tried to teach me to sew, my first experience was horrible in 4H, but at 19 I decided to learn and took classes.