
This sweet potato crumble turns ordinary sweet potatoes into a luxurious treat that sits right between a pie and cobbler. The smooth, spicy sweet potato layer topped with a thick covering of buttery cinnamon crumbs makes this the ultimate comfort food.
I first whipped up this sweet potato crumble one Thanksgiving when I wanted something different from the usual marshmallow-topped sweet potato dish. My family wasn't sure about it until they took their first warm bite with melting vanilla ice cream on top—they fell in love right away.
Ingredients
- Sweet potatoes: They're the main attraction giving natural sweetness and smooth texture. Go for orange ones with clean, unbroken skin.
- Granulated sugar: It works with the earthy potato flavor without being too much. Grab good quality cane sugar for best taste.
- Eggs: They help the filling set up properly and add richness. Warm eggs mix in better.
- Pumpkin pie spice: It brings that fall taste everyone wants. Get a new container for stronger scent.
- Heavy cream: This makes the filling super smooth. Pick the highest fat cream you can get.
- All purpose flour: This forms your crumble topping. The unbleached kind tastes a bit better.
- Butter: It holds the topping together and makes those yummy crisp bits. Fancy European butter works really well here.
- Cinnamon: Adds cozy flavor and that amazing crumble smell. Ceylon type has more interesting flavor than regular.
Step-by-Step Instructions
- Prepare Your Base:
- Mix your mashed sweet potatoes with sugar until completely smooth. Don't rush this part, it's key for getting that silky filling. As you stir, the sugar starts to melt into the potatoes, creating a shiny mix that's the foundation of your dessert.
- Create The Custard:
- Drop in eggs one by one, stirring well each time. This stops lumps from forming. Then add your vanilla, salt, and pumpkin pie spice, making sure the spices spread out evenly. Last, pour in the heavy cream slowly while constantly stirring to get a smooth custard that will bake up perfectly.
- Make The Perfect Streusel:
- Good streusel needs well-mixed butter. After mixing dry stuff, pour in melted butter and use a fork to make uneven chunks in different sizes. Some people like using their fingers to pinch the mix into crumbs, which gives you both big clusters and tiny bits for the best topping texture.
- Layer And Bake:
- Put your custard mix in your pan, spreading it flat. Then gently drop your streusel all over the top, covering everything but don't push it down. This lets some bits sink a little while baking, creating nice texture layers in your finished dessert. It's done when the edges are set but the middle still jiggles slightly.

Pumpkin pie spice seems basic, but it's actually my hidden trick in this recipe. The mix of cinnamon, nutmeg, ginger, and cloves goes so well with the sweet potatoes' natural flavor without needing lots of separate spice measuring. I once put in twice as much by mistake and found out that extra spice actually made a more fragrant, interesting flavor that my family now likes better.
Make Ahead Magic
This sweet potato crumble gets better with time. Fix it a day before you plan to serve it so the flavors can mix together. The spices will spread through the whole dish, and you'll notice more difference between the creamy filling and buttery top. To warm it up, cover with foil and heat in a 300°F oven for about 20 minutes until hot, then take the foil off for the last 5 minutes to make the top crispy again.
Sweet Potato Selection
For the yummiest results, bake your sweet potatoes instead of boiling them. Baking makes their flavor stronger and cuts down on water, giving you more sweet potato taste. Wrap each one in foil and bake at 400°F for about an hour until they're totally soft. Let them cool a bit, then take off the skins and mash them while they're still warm. If you want super smooth filling, put the mashed sweet potatoes through a food mill or ricer before adding the other stuff.
Dietary Adaptations
You can change this recipe for different diets without losing taste. For dairy-free, swap the heavy cream with coconut cream in the filling and use coconut oil instead of butter in the crumble. The light coconut flavor actually makes the sweet potato taste better. For gluten-free, use a one-to-one gluten-free flour mix instead of regular flour in the crumble. You might need to add another tablespoon of melted butter to get the right crumbly texture.

Sweet, spicy, and incredibly tasty—this sweet potato crumble will surely become a regular in your dessert lineup.
Frequently Asked Questions
- → How far in advance can I prepare this dish?
Absolutely! You can make everything for this dish up to two days before it's needed. Cover it up tightly after assembling and refrigerate. Just pop it in the oven at 350°F for about 20 minutes when ready to serve.
- → Will canned sweet potatoes work for this recipe?
Yes, they work just fine. Just make sure to drain them fully and mash thoroughly. Keep in mind canned ones might be sweeter, so you can dial down the sugar a bit.
- → What’s the best way to avoid dairy for this?
If you're skipping dairy, go for full-fat coconut milk or cream instead of heavy cream. For the topping, swap butter with a plant-based substitute, and you're good to go.
- → Can I freeze it for later?
Totally! After baking, let it cool completely, then wrap it tightly before freezing. It keeps well for up to three months. When you're ready, thaw in the fridge overnight and reheat at 350°F until it's nice and warm.
- → What's the easiest way to mash sweet potatoes?
For smooth potatoes, roast them whole at 400°F until soft, about 45-60 minutes. Peel afterward and mash. If boiling is more your thing, cook peeled chunks in water until tender, then drain before mashing.
- → Can I cut back on the sugar here?
Of course! If you prefer it less sweet, reduce the sugar in both the filling and topping by about 1/3. Sweet potatoes are naturally sweet, so the flavor will still shine through.