Quite an eye-opening list for me. My first informed opinion is at #6. Obviously I am way behind the curve and will need to spend significant $$$ and time to catchup or perhaps just await additional opinions from the learned CH crew.
The addition of cinnamon adds a kick of “something special” to this rich chocolate sheet cake, but if you prefer, you can reduce the amount or leave the cinnamon out all together; you'll simply have a delightful, classic chocolate cake on your hands.
These delightfully tender, not-too-sweet muffins are a delicious twist on the classic lemon poppy seed combo. Grapefruit works exceptionally well in this context, as the flavor comes through delicately, without any of the citrus fruit’s bitterness.