Three words: cake batter milkshake. The key ingredient to boost your next shake with a creamy, rich twist? Boxed cake mix.

Ever since I can remember, I have always loved a good strawberry milkshake. It’s a comfort food when I’m sick, and a great treat when I’m not. Now that I’m an adult, I can make my own ...

But this summer, bars across D.C. and beyond are trading in the bubbles and pellet ices for something a little more silky. From reinvented summertime classics like a milky Negroni at Quadrant to ...