A Brief History of Sweet Potato Casserole
Sweet potato casserole with marshmallows is a uniquely American dish that dates back to the early 1900s. The first widely known recipe appeared in a booklet by the Angelus Marshmallow company in 1917, which promoted marshmallows as a modern cooking ingredient. Since then, the dish has become a beloved Thanksgiving staple, especially in the Southern United States, where sweet potatoes are a regional favorite. This comfort food beautifully combines earthy sweetness with gooey marshmallows, creating a nostalgic holiday classic.

FAQ
1. Can I make sweet potato casserole ahead of time?
Yes! You can prepare the sweet potato mixture up to 2 days in advance. Store it covered in the refrigerator, then add marshmallows and bake before serving.
2. How do I keep the marshmallows from burning?
Bake uncovered for about 20 minutes, checking during the last 5 minutes. If marshmallows brown too quickly, loosely cover with foil.
3. Can I freeze sweet potato casserole?
Yes, but freeze only the sweet potato base without marshmallows. Add fresh marshmallows before baking after thawing to maintain texture.