Du Pain et des Idées is (rightfully) celebrated as one of the best bakeries in Paris - if not the best.
Stop by early in the morning and avoid the queue.
Their croissants are amazing and well-worth getting up early.
And while you are there, why don’t you try their signature chocolate pistachios escargots as well. If you do get stuck in line, then use the time to admire the elegant vintage decore.
34 Rue Yves Toudic, 75010 Paris, France