Falafel notes:

Tried 350, maybe 375 or 400 better?
Bake 10-12 mins, flip, bake another 10-12 mins.  Except not really
enough, so try 15 first?  Maybe not with higher temp?
Next time:  375 for 15 mins first side, 10 mins 2nd side (we got
hungry).  Was fine.  12 2nd side would be OK too.

Tahini: squish a garlic clove, dribble in some lemon juice, then start
thinning.  it'll "thicken" first and then add more water.  Eventually
will thin.