The One Ingredient You Should Be Adding To Streusel - Chowhound

Premyuda Yospim/Getty Images Streusel is one of those magical toppings that makes a humble muffin look like it got dressed up for prom. It's buttery, it's crumbly, it's sweet enough to double as a cookie in disguise. But here's the thing: most streusel recipes play it too safe. They stick to the holy trinity of flour, sugar, and butter, maybe a sprinkle of cinnamon if they are feeling bold. That's fine for your…