Sweet Potato Casserole with Marshmallows and Streusel

This Sweet Potato Casserole is a must-have side dish for the holidays, featuring creamy mashed sweet potatoes topped with a decadent layer of toasted marshmallows and brown sugar streusel. It’s a show-stopping crowd-pleaser that’s sure to be a hit at any gathering. Sweet potatoes, brown sugar, cinnamon, butter, and marshmallows come together in perfect harmony,…