This tiny Upper East Side cafe is equally amazing for a strong espresso and hot, fresh strudel (apple and cheese/cherry are great selections!) as well as delicious delicate dinner crepes and spatzle! How to decide when to come--whatever your mood, and I suppose, what time of day you find yourself in the area...
Try mail-order when you are out of town.
1631 2nd Avenue (bt 84th & 85th)