Siri enjoyed the baking very much.
I measured the ingredients and then handed her the measuring cups and spoons, and she put everything together.
The cookies we made were Dreena Burton's Super-Charge Me! vegan cookies and they were very tasty.
By the way, home evening lasted approximately 7 minutes and there were no fights or crying spells. (Brother was already in bed; we'll see what happens when he stays awake long enough to be present.)