Edwin Orellana, the owner of Dos Manos Kitchen in Somerville, is set to open a permanent restaurant in the Charles River Speedway in mid May. The couple are aiming to bring their Salvadoran corn cakes to the Brighton spot, where they will serve pupusas. The space will be small but easier for Edwin to manage than his previous pop-up spaces. The menu will include dishes like ancho chile and orange marinated chicken, braised beef pupusa, and a vegan pupusa. The Orellanas also plan to introduce minutas, a Salvadoran snow cone topped with options like tamarind jelly, condensed milk, and fresh fruit.