Les Petits Macarons recipe:
4 drops of chef master sky blue color added and 1/4 tsp Madagascar vanilla bean paste
Set the convection oven to 365F then popped in the tray and turned it off for 7 minutes.
Then turned the oven back on to 365F for 7 minutes.
Under mixed which is why I think most of them cracked but I also think 365F was not hot enough for them to dry and form a strong top.