Upside Down Sweet Potato Pie Recipe: Caramelized Celery Crown Over Spiced Custard Bliss

This upside-down sweet potato pie recipe transforms dessert into a showstopper with its signature caramelized celery crown and spiced custard filling. The secret lies in baking the crust upside down—first—so the celery topping gets perfectly golden while the custard stays lusciously creamy.

I've perfected this technique over years of holiday baking, ensuring every slice delivers that perfect balance of sweet, spiced, and caramelized flavors. What makes this recipe special is the two-stage baking process: the crust bakes first, creating a sturdy base, while the celery crown gets its signature caramelized edges.

The filling? A velvety blend of roasted sweet potatoes, warm spices, and a touch of molasses for depth. No one will believe it's made at home—it looks and tastes like it belongs in a bakery case.

The result is a pie with crispy, honeyed celery on top, a tender crust at the bottom, and a spiced custard filling that's rich but never heavy.

The upside-down presentation makes it visually stunning, while the flavors are pure comfort—ideal for Thanksgiving, Christmas, or any special occasion when you want to impress. For modern adaptations, I've included options for gluten-free crusts and vegan butter alternatives without sacrificing texture or flavor. Let's get baking!

Ingredients for upside down sweet potato pie

Sweet potatoes, golden crust, and caramelized celery—this pie transforms holiday dessert into a showstopper.

The sweet potatoes are the heart of this pie—choose vibrant orange ones with no soft spots. Trader Joe's organic or local farmers market varieties work best for that deep, natural sweetness. If you're using pre-cut sweet potatoes, rinse them thoroughly to remove excess starch. For the crust, King Arthur flour gives the best texture, but any all-purpose will do. The celery? Fresh is non-negotiable here—the caramelized flavor is what makes this pie special. Look for stalks that are crisp and free of brown spots, with a bright green hue.

No evaporated milk? Full-fat coconut milk works in a pinch, though it may alter the texture slightly. For a vegan adaptation, use unsweetened almond milk with an extra tablespoon of cornstarch to thicken. The molasses can be swapped for maple syrup at half the amount, but it'll be slightly less complex. If you're short on celery, substitute with thinly sliced fennel—it caramelizes beautifully and adds a subtle anise note. For the crust, gluten-free 1:1 flour blend works well if needed, just add an extra tablespoon of xanthan gum for binding.

Sweet potatoes can be roasted ahead and stored in the fridge for 3 days or frozen for 3 months. The crust dough should be wrapped tightly and kept in the fridge for up to 48 hours—it actually improves overnight. Once assembled, the pie keeps well in the fridge for 4 days and freezes beautifully for 2 months. For serving, I always brush the top with extra honey and sprinkle with flaky sea salt—trust me on this. The flavors deepen overnight, so if you can bake it a day ahead, do it.

Step-by-step instructions for upside down sweet potato pie

Master this technique for a pie with caramelized celery crown and velvety spiced filling.

Preheat your oven to 375°F. In a large bowl, combine the 2 lbs peeled and cubed sweet potatoes, 1.5 cups granulated sugar, 1 tbsp molasses, and 1 tbsp vanilla extract. Mix well until the sweet potatoes are evenly coated. Transfer the mixture to a greased 9-inch pie dish and spread it evenly in a single layer, pressing down gently to create a compact base.

Bake for 25-30 minutes until the sweet potatoes are tender and the edges begin to caramelize slightly. You'll know they're ready when a knife slides in easily and the filling looks soft but not mushy. Remove from the oven and let cool for 10 minutes—this resting period prevents the filling from sliding when you add the celery crown later.

While the sweet potato filling cools, prepare the celery crown. In a large skillet over medium heat, combine 2 tbsp honey, 0.25 cup brown sugar, and 1 tbsp molasses. Let it melt and bubble for 2-3 minutes until it forms a syrupy glaze. Add the 12 thinly sliced celery stalks and toss to coat evenly.

Cook for 8-10 minutes until the celery becomes tender and the glaze caramelizes into a glossy, amber coating. Remove from heat and let cool for 5 minutes. Arrange the caramelized celery in a circular pattern around the edge of the pie dish, slightly overlapping each stalk to create a continuous crown. Press down gently to help it adhere to the dish.

In a medium bowl, combine 2 cups all-purpose flour, 2 tbsp ground cinnamon, 0.5 tsp ground nutmeg, and 0.5 tsp salt. In a separate bowl, cut the 0.5 cup cold cubed butter into the dry ingredients using a pastry cutter or your fingers until the mixture resembles coarse crumbs with pea-sized butter pieces remaining.

Add 0.5 cup unsweetened applesauce and mix gently with a fork until just combined. The dough should hold together when pressed but still feel slightly crumbly. If it's too dry, add 1-2 tablespoons cold water; if too sticky, chill for 10 minutes before proceeding. Sprinkle 2 tbsp additional flour over the work surface and turn out the dough.

Gently press the crust mixture evenly over the caramelized celery crown, creating a smooth, even layer that extends slightly beyond the edge of the pie dish. Use your fingers or a spatula to smooth the top and create a slight ridge around the edge for a decorative finish. Sprinkle the remaining 0.25 cup granulated sugar evenly over the crust.

Bake at 375°F for 35-40 minutes until the crust is golden brown and the filling is set but still slightly jiggly in the center. The pie is ready when the crust is crisp and the edges pull away cleanly from the pie dish. Let cool for 2 hours before slicing—this allows the filling to fully set and develop its signature texture.

Run a sharp knife around the edge of the pie to loosen it from the dish, then carefully invert the pie onto a serving plate. The caramelized celery crown should remain intact, creating a stunning presentation. Serve warm with a dollop of whipped cream or a scoop of vanilla ice cream for the ultimate dessert experience.

Each slice should reveal a perfectly caramelized celery crown, a velvety sweet potato filling infused with warm spices, and a crisp, buttery crust. The contrast of temperatures and textures makes this pie truly special—worth every minute of the baking process.

Dietary considerations for this upside down sweet potato pie

Gluten-Free Adaptation

For a gluten-free crust, swap the all-purpose flour for a 1:1 gluten-free baking flour blend like Bob's Red Mill or King Arthur. Add 1 extra tablespoon of xanthan gum to ensure proper binding—this helps mimic the structure of traditional flour.

Keep the crust mixture cold and handle it gently to prevent crumbling. The filling and celery crown remain unchanged, so you still get that signature caramelized flavor. 🌱

Vegan Butter Option

Replace the ½ cup unsalted butter in the crust with vegan butter like Miyoko's or Earth Balance. These brands melt beautifully and provide the same rich flavor. For the filling, use coconut milk instead of evaporated milk—opt for full-fat canned coconut milk to maintain creaminess.

The spices and molasses stay the same, so the filling remains rich and flavorful. 🥥

Lower Sugar Version

Reduce the 1.5 cups granulated sugar in the filling to 1 cup and the 0.25 cup brown sugar in the celery crown to 0.125 cup. Boost sweetness naturally with 2 extra tablespoons of molasses and 1 extra tablespoon of honey in the celery glaze.

The spices will enhance the sweetness while keeping the pie balanced. This version works well for those watching sugar intake without sacrificing flavor. 🍯

Dairy-Free Filling

For a dairy-free filling, replace the evaporated milk with unsweetened almond milk or oat milk, but add 1 tablespoon of cornstarch to thicken it properly. The 2 eggs can be swapped for 2 flax eggs (2 tablespoons ground flaxseed + 6 tablespoons water, mixed and rested for 5 minutes).

The crust remains the same, but if you're avoiding butter entirely, use coconut oil instead. The texture stays creamy and rich! 🥛

Nut-Free Crust

If you're avoiding nuts (like in the applesauce), replace the ½ cup unsweetened applesauce with ½ cup mashed banana or ½ cup pumpkin puree. These alternatives add moisture without altering the crust's texture.

For extra binding, chill the dough for 10 extra minutes before pressing it into the pie dish. The filling and celery crown stay nut-free, making this a safe option for nut allergies. 🍌

Storage Tips for Dietary Needs

Gluten-free and vegan versions keep well in the fridge for 4 days and freeze beautifully for 2 months. When reheating, cover loosely with foil and warm in a 350°F oven for 15-20 minutes to maintain texture.

For lower-sugar pies, store in an airtight container to prevent drying. The celery crown stays crispy when reheated gently—just avoid microwaving to preserve its caramelized perfection. ✨

Frequently asked questions