Here is my favorite sweet potato crumble recipe, with tender roasted sweet potatoes, warm fall spices, and a crispy oat topping that’s perfectly sweetened with brown sugar and butter.
This sweet potato crumble has become our go-to dessert when I want something cozy but don’t have time for a complicated pie. The kids love it warm with a scoop of vanilla ice cream, and I love how easy it is to throw together on a busy weeknight.
Why You’ll Love This Sweet Potato Crumble
- Perfect fall dessert – The warm pumpkin pie spice and cinnamon make this sweet potato crumble taste like autumn in every bite, perfect for cozy evenings or holiday gatherings.
- Easy preparation – No complicated techniques here – just mix, layer, and bake for a dessert that looks impressive but requires minimal effort.
- Crowd-pleasing comfort food – The creamy sweet potato base topped with buttery crumble is the kind of dessert that disappears fast at potlucks and family dinners.
- Ready in about an hour – From start to finish, this dessert comes together in just 55-65 minutes, making it perfect for weeknight treats or last-minute entertaining.
- Great with ice cream – Serve it warm with a scoop of vanilla ice cream for the perfect contrast of temperatures and textures that everyone will love.
What Kind of Sweet Potatoes Should I Use?
For this crumble, you’ll want to use orange-fleshed sweet potatoes like Beauregard or Centennial varieties, which are the most common ones you’ll find at the grocery store. These have that classic sweet, creamy texture that works perfectly for baking. You can either roast your sweet potatoes whole in the oven until they’re tender, or if you’re short on time, you can peel and cube them before boiling until soft. Either way, make sure they’re completely cooled before mashing to avoid any lumps in your final dish. If you happen to have leftover mashed sweet potatoes from another meal, those work great too – just make sure they’re not seasoned with anything that might clash with the sweet flavors in this recipe.
Options for Substitutions
This sweet potato crumble is pretty forgiving when it comes to ingredient swaps:
- Sweet potatoes: You can substitute with canned pumpkin puree or butternut squash puree for a similar taste and texture. Just make sure to drain any excess liquid if using fresh squash.
- Heavy cream: For a lighter option, use half-and-half or whole milk, though the texture will be slightly less rich. Coconut cream or oat cream work great for dairy-free versions.
- Pumpkin pie spice: Don’t have pumpkin pie spice? Mix together 1 teaspoon cinnamon, 1/2 teaspoon nutmeg, 1/4 teaspoon ginger, and 1/4 teaspoon cloves to make your own blend.
- All-purpose flour: For the crumble topping, you can use oat flour or almond flour, but reduce the amount by about 1/4 cup since these flours are denser. You could also add rolled oats for extra texture.
- Unsalted butter: Coconut oil (solid, not melted) or vegan butter work well for dairy-free options. If using salted butter, just reduce the added salt by half.
- Granulated sugar: Brown sugar adds a nice caramel flavor to both the filling and topping. You can also use coconut sugar or maple sugar, though the sweetness level might vary slightly.
Watch Out for These Mistakes While Baking
The biggest mistake when making sweet potato crumble is using sweet potatoes that aren’t fully cooked and smooth – lumpy or undercooked potatoes will create an uneven texture, so make sure to roast or boil them until they’re fork-tender and mash them completely. Another common error is adding the melted butter to the crumble topping while it’s still hot, which can make the flour mixture clumpy instead of creating those perfect crumbly pieces you want on top. Don’t forget to let your sweet potato filling cool slightly before adding the eggs, as hot filling can scramble the eggs and ruin the smooth custard-like base. Finally, resist the urge to overbake – the center should still have a slight jiggle when you remove it from the oven, as it will continue cooking from residual heat and set up perfectly as it cools.
What to Serve With Sweet Potato Crumble?
This sweet potato crumble is absolutely perfect on its own, but a scoop of vanilla ice cream on top takes it to the next level – the contrast between the warm, spiced crumble and cold, creamy ice cream is just incredible. You could also try it with a dollop of fresh whipped cream or even some Greek yogurt if you want something a bit lighter. For a cozy fall dinner, I love serving this alongside a simple roasted chicken or pork tenderloin since the sweet flavors complement savory dishes really well. Don’t forget to have some coffee or spiced cider on hand – they pair beautifully with all those warm cinnamon and pumpkin pie spice flavors.
Storage Instructions
Keep Fresh: Sweet potato crumble keeps really well covered tightly with foil or plastic wrap in the refrigerator for up to 5 days. I actually think it tastes even better the next day after all those flavors have had time to meld together! Just make sure it’s completely cooled before covering to keep that crumble topping nice and crispy.
Freeze: You can freeze this crumble for up to 3 months in a freezer-safe container or wrapped well in aluminum foil. I like to cut it into individual portions before freezing so I can grab just what I need. Let it thaw overnight in the fridge before reheating.
Warm Up: To bring back that fresh-baked taste, warm individual portions in the microwave for about 30-45 seconds, or reheat the whole dish in a 350°F oven for 10-15 minutes until heated through. The crumble topping gets nice and crispy again this way, and it’s perfect with a scoop of vanilla ice cream on top!
| Preparation Time | 15-20 minutes |
| Cooking Time | 40-45 minutes |
| Total Time | 55-65 minutes |
| Level of Difficulty | Medium |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 3900-4200
- Protein: 45-55 g
- Fat: 130-150 g
- Carbohydrates: 640-680 g
Ingredients
For the sweet potato layer:
- 2 cups mashed sweet potatoes
- 1 cup granulated sugar
- 3 large eggs
- 2 tsp pumpkin pie spice blend
- 1/2 tsp salt
- 2 tsp vanilla extract
- 2/3 cup heavy cream
For the streusel topping:
- 2 cups all-purpose flour
- 1 1/2 cups granulated sugar
- 2 tsp ground cinnamon
- 1/2 tsp salt
- 12 tbsp unsalted butter, melted
For serving:
- Vanilla ice cream
Step 1: Prepare the Baking Dish
Preheat your oven to 375°F (190°C).
Butter a 12-inch cast iron skillet or a medium casserole dish to prevent sticking and to help your dessert bake evenly.
Set the prepared dish aside while you make the filling.
Step 2: Make the Sweet Potato Filling
- 2 cups mashed sweet potatoes
- 1 cup granulated sugar
- 3 large eggs
- 2 tsp pumpkin pie spice blend
- 1/2 tsp salt
- 2 tsp vanilla extract
- 2/3 cup heavy cream
In a large bowl, whisk together the mashed sweet potatoes, 1 cup granulated sugar, eggs, pumpkin pie spice blend, 1/2 teaspoon salt, and vanilla extract until well combined.
Pour in the heavy cream and whisk again until the mixture is smooth and creamy.
Pour this filling evenly into your prepared skillet or casserole dish.
Step 3: Prepare the Cinnamon Streusel Topping
- 2 cups all-purpose flour
- 1 1/2 cups granulated sugar
- 2 tsp ground cinnamon
- 1/2 tsp salt
- 12 tbsp unsalted butter, melted
In a separate medium bowl, combine the all-purpose flour, 1 1/2 cups granulated sugar, ground cinnamon, and 1/2 teaspoon salt.
Stir with a whisk to mix evenly.
Add the melted butter, and use a fork (or hand mixer if you’d like) to stir until the mixture turns crumbly.
I like to leave some bigger clumps in the streusel for extra texture—it gives the topping a delicious crunch!
Step 4: Assemble and Bake the Casserole
- sweet potato filling from Step 2
- cinnamon streusel topping from Step 3
Sprinkle the cinnamon streusel topping evenly over the sweet potato filling in your prepared dish, making sure the whole surface is covered.
Transfer the dish to the oven and bake for 40 to 45 minutes, or until the filling is set and the top is golden brown.
Step 5: Cool Briefly and Serve
- vanilla ice cream
Remove the casserole from the oven and let it cool for about 10 minutes to set the filling and make it easier to serve.
Serve warm, topped with vanilla ice cream for an extra special treat.
I find that the contrast of the hot casserole with cold ice cream is simply irresistible!
Homemade Sweet Potato Crumble
Ingredients
For the sweet potato layer:
- 2 cups mashed sweet potatoes
- 1 cup granulated sugar
- 3 large eggs
- 2 tsp pumpkin pie spice blend
- 1/2 tsp salt
- 2 tsp vanilla extract
- 2/3 cup heavy cream
For the streusel topping:
- 2 cups all-purpose flour
- 1 1/2 cups granulated sugar
- 2 tsp ground cinnamon
- 1/2 tsp salt
- 12 tbsp unsalted butter, melted
For serving:
- vanilla ice cream
Instructions
- Preheat your oven to 375°F (190°C). Butter a 12-inch cast iron skillet or a medium casserole dish to prevent sticking and to help your dessert bake evenly. Set the prepared dish aside while you make the filling.
- In a large bowl, whisk together the mashed sweet potatoes, 1 cup granulated sugar, eggs, pumpkin pie spice blend, 1/2 teaspoon salt, and vanilla extract until well combined. Pour in the heavy cream and whisk again until the mixture is smooth and creamy. Pour this filling evenly into your prepared skillet or casserole dish.
- In a separate medium bowl, combine the all-purpose flour, 1 1/2 cups granulated sugar, ground cinnamon, and 1/2 teaspoon salt. Stir with a whisk to mix evenly. Add the melted butter, and use a fork (or hand mixer if you'd like) to stir until the mixture turns crumbly. I like to leave some bigger clumps in the streusel for extra texture—it gives the topping a delicious crunch!
- Sprinkle the cinnamon streusel topping evenly over the sweet potato filling in your prepared dish, making sure the whole surface is covered. Transfer the dish to the oven and bake for 40 to 45 minutes, or until the filling is set and the top is golden brown.
- Remove the casserole from the oven and let it cool for about 10 minutes to set the filling and make it easier to serve. Serve warm, topped with vanilla ice cream for an extra special treat. I find that the contrast of the hot casserole with cold ice cream is simply irresistible!
