Sweet or salty? Lovers of both are in luck at this Harvard Square outpost of Christina Tosi’s innovative dessert empire, where everyday ingredients are combined and transformed into unexpected treats. Milk Bar is a fast-paced and welcoming snack spot whose flavor combinations are inspired by the humble aisles of the middle-American supermarket. Signature sweet treats feature overlooked staples such as cornflakes, pretzels, and potato chips. Milk Bar is home to the original cereal milk soft serve, which is exactly what it sounds like. (Think of the sweet and salty goodness you’d find at the bottom of your cornflakes bowl.) If you’d also like to enjoy a savory meal, simply slide over to &pizza, which shares the same address. A major bonus here: you’ll never be judged for eating dessert first.