Boom! Burgers was probably one of the first classic burger joints in town, and it remains to be the best one even today. You get the whole package – fantastic burgers, homemade fries, variety of milkshakes, a good choice of burger-friendly foreign beers and some salads for the discerning. The space is small and cosy with its open kitchen and easy-going atmosphere. Frequent it on Thursday for a special new one-off burger every week. Recently Boom! оpened a second place on the “yellow bricks” of Sofia, which offers some quality cocktail in addition to the burgers.