I have been to Chök a dozen times since I moved to Barcelona. I love their doughnut display: I mean, whatever is the hole there for if not for hooking it up on the wall?
They have a distinctive doughnut. Extremely light: almost soapy in flavour. They employ a special (secret) technique that makes it possible. It’s not my thing. I favour a hint of grease and the crispness in a doughnut. I’m probably happiest with a sugared Krispy Kreme and a cup of black coffee (or in Barcelona, a Lukumas).
Still my oldest daughter seems smitten with chocolate dipped doughnut covered with hundreds and thousands sprinkles. (As I write this I realise that I like their not too sweet creative toppings a lot more than the doughnut it adorns.) So much so that I am a regular customer.
I find it to be a beautiful shop. And I am always pleased when there is someone decorating doughnuts in the back room.
See this and find more addresses on my Foodie in Barcelona Map
C/del Carme, 3