Dessert

Sweet Potato Casserole with Brown Sugar Streusel Recipe

Bymia larkspur December 8, 2025December 8, 2025

Introduction

Sweet Potato Casserole with Brown Sugar Streusel is a classic comfort side dish perfect for holidays or cozy dinners. Creamy mashed sweet potatoes are topped with a buttery, crunchy streusel that adds the perfect sweet contrast. This recipe is simple to make and sure to impress your family and guests.

The image shows a round dish with two main layers. The bottom layer is a bright orange, smooth, dense sweet potato puree filling that looks soft and creamy. On top, there is a thick, crumbly brown streusel crust made of sugar and crumbs, covering the whole surface. A spoon is scooping a portion from the center, lifting a chunk with both the orange filling and the crumb topping visible. The dish is in a white, fluted ceramic baking dish set on a beige cloth, all placed on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

3 lbs sweet potatoes (5–6 medium)
6 tbsp melted butter
1/2 cup sugar
2 large eggs
2 tsp vanilla extract
1 tsp cinnamon
1 tsp salt
1/4 cup half-and-half
3 tbsp softened salted butter
1 cup brown sugar
1/3 cup flour

Instructions

Step 1: Preheat the oven to 400°F. Pierce the sweet potatoes with a fork and bake them for 50–60 minutes until they are soft and easily pierced with a knife.
Step 2: Allow the sweet potatoes to cool slightly, then scoop out the flesh and mash it until smooth.
Step 3: Stir in the melted butter, sugar, eggs, vanilla extract, cinnamon, salt, and half-and-half until well combined.
Step 4: Spread the sweet potato mixture evenly into a 9×13-inch baking dish.
Step 5: In a separate bowl, mix together the softened butter, brown sugar, and flour until coarse crumbs form.
Step 6: Sprinkle the streusel topping evenly over the sweet potato mixture in the baking dish.
Step 7: Reduce the oven temperature to 350°F and bake for 20–25 minutes, until the streusel topping is golden brown.
Step 8: Let the casserole rest for a few minutes before serving to allow it to set slightly.

Tips & Variations

For extra texture, add chopped pecans or walnuts to the streusel topping.
Swap half-and-half for whole milk or cream for a richer casserole.
If you prefer a less sweet dish, reduce the sugar or brown sugar by a quarter cup.
Make this casserole ahead of time and refrigerate before baking; add a few extra minutes to the baking time if baking from chilled.

Storage

Store leftover casserole covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave or the entire dish in a 350°F oven until warmed through. The topping may lose some crispness after reheating but will still taste delicious.

How to Serve

A round white ceramic dish filled with a sweet potato casserole that has two visible layers: a thick, soft, bright orange mashed sweet potato base on the bottom and a golden brown crumbly streusel topping that covers the whole surface with a rough texture. A silver spoon is lifting a scoop of the casserole, showing the contrast between the smooth orange layer underneath and the crispy crumbly topping. The dish sits on a light brown cloth on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use canned sweet potatoes instead of fresh?

Fresh sweet potatoes are recommended for the best texture and flavor, but if using canned, drain and mash them well before mixing. The texture may be softer, so adjust the baking time accordingly.

Can I prepare the casserole ahead of time?

Yes, you can assemble the casserole the day before and refrigerate it unbaked. When ready to bake, allow for an additional 5–10 minutes in the oven to ensure it’s heated through.