The Chocolateria serves homemade cake, anything you can imagine.
Try the chololate cake, it's excellent.
The ambiente is nice and cozy - you can get an idea when looking at the picture.
The best place to sit down, have coffee and eat cake is on the upper floor (where the huge windows are).
And you can feel the typical patagonian wind there, just look at the flag, how it's torn :-)
Well, in El Chalten you mainly have an option of going to the store, buying some products, bringing them back to Rancho Grande and cooking a delicious diner.