This cozy brown butter sweet potato casserole with candied pecan streusel is the result of a happy kitchen accident. It’s sweet, nutty, buttery, with a crunchy topping that makes everything better.
Don’t skip browning the butter—it adds a nutty depth. Watch the butter closely as it can go from perfect to burnt in seconds. Let the sweet potatoes steam dry after boiling to prevent a watery casserole. Cool the sweet potato mixture before adding the egg to avoid scrambling. The streusel should be clumpy, not overmixed. You can boil and mash the sweet potatoes a day ahead.
Keywords: sweet potato casserole, brown butter, candied pecans, Thanksgiving side dish, holiday recipe, comfort food