Butty Sandwich House is a sandwich shop in Seoul that serves panini and ciabatta sandwiches. Its menu includes a melt mushroom panini, avocado, vegetable and chicken sandwiches, smoothies and coffee, and the bread is baked crisp on the outside and soft inside. Some visitors arrive early enough to line up before opening, and the interior, built around wood and tile, gets good light and is comfortable. Staff service and attitude are poor.