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    Home » Holiday Entertaining

    Wood-Fired Sweet Potato Casserole

    Published: Nov 23, 2021 · Modified: Oct 15, 2025 by Zimmy · This post may contain affiliate links · Leave a Comment

    Jump to Recipe Print Recipe

    Wood-Fired Sweet Potato Casserole. Take the classic flavours of a Sweet Potato Casserole to new heights, by cooking with the smoky flavours of lump charcoal and wood!

    Wood-fired Sweet Potato Casserole in a cast iron skillet with a scoop taken out

    The caramelization of the roasted sweet potatoes in the Ooni Karu 16 oven is life changing! The perfect browning of the marshmallows, as the flames gently roll across the top of the oven is mesmerizing!

    Finishing with pecan wood creates a intoxicating aroma! This "side dish" was so good that my wife enjoyed leftovers with her morning coffee!

    Disclosure: I have participated in a paid partnership with Ooni. Opinions in this post are my own. Proud Onni Ambassador. Opinions in this post are my own.

    Jump to:
    • Ingredients
    • INSTRUCTIONS 
    • TIPS
    • FAQ
    • Equipment
    • More of my favourite Ooni Recipes (not pizza) to enjoy!
    • Tried this recipe?
    • 📖 Recipe

    Ingredients

    Sweet Potato Casserole Ingredients layed out beside the Ooni Karu 16
    • Sweet potatoes
    • Brown sugar 
    • Butter 
    • Sage
    • Eggs
    • Cinnamon
    • Nutmeg
    • Vanilla
    • Salt
    • Half and half, optional

    Topping

    • Miniature marshmallows
    • Pecans 

    See recipe card for quantities.

    INSTRUCTIONS 

    Roast the Sweet Potatoes

    Preheat the Ooni Karu 16 oven to 400°F (I use a combination of lump charcoal & hardwood to maintain the heat and add layers of flavour).

    When the oven has reached 375°F, place the Ooni Dual-Sided Grizzler Plate in the oven, ridge side up, to preheat. Pierce potatoes several times.

    Once the oven has reached 400°F, place the sweet potatoes on the grizzler plate and bake for 1-1¼ hours or until soft. Rotate the potatoes and change positions every 10 minutes to ensure even cooking. The rear of the oven and sides are slightly hotter, so moving positions will ensure consistent cooking.

    Baking sweet potatoes in a flaming wood oven.
    Baking sweet potatoes in a flaming wood oven with the fuel hatch opened.

    As you add fuel, if the flames are too large and are rolling towards the rear potatoes, causing them to burn, open the fuel hatch and allow the flames to burn down, then replace the hatch.

    Once the potatoes are done, remove from oven. Set aside until cool enough to handle, then peel off the skin. (Alternatively, cut open and scoop out the pulp). Mash to desired consistency.

    Six baked sweet potatoes with the skin peeled off on one.
    A bowl of the mashed potatoes with the remaining ingredients ready to be added into the bowl.

    Assemble and Bake the Casserole

    Add all the ingredients EXCEPT for the toppings (half & half is completely optional).

    Mix well, then spoon into an oiled Ooni Cast Iron Skillet (9").

    Bake at 375°F for 25 minutes, until heated through.

    Sweet casserole spooned into the cast iron pan.
    Sweet Potato skillet in a flaming wood oven.

    Top with marshmallows and pecans and bake 5 minutes or until marshmallow are lightly toasted.

    The sweet potato casserole with marshmallows going into the Ooni Karu 16 oven.
    A sweet potato casserole in the flaming wood oven

    TIPS

    For the baking process and browning of the marshmallows, I used a couple of chunks of pecan wood to add additional flavour.

    To make ahead, assemble the casserole, do not bake, or put on the toppings. Cover tightly and refrigerate for up to 3 days. Remove from the refrigerator while preheating the oven and bake as per directions.

    FAQ

    Can you make this in your indoor oven?

    Yes, absolutely! You can make the Wood-Fired Sweet Potato Casserole in your range oven instead of a wood-fired oven. Here's how you can adjust the recipe:
    Oven Instructions:
    Preheat your oven to 375°F (190°C). The even heat distribution in your oven will work beautifully to achieve that golden, caramelized top.
    Prepare the sweet potato mixture and topping as instructed in the original recipe.
    Assemble the casserole in an oven-safe baking dish.
    Bake uncovered for 35-40 minutes, or until the top is lightly browned, and the sweet potato mixture is heated through. For browning the marshmallows, switch to broil for the last 1-2 minutes but keep a close eye on it to avoid burning!

    Tips for Replicating that Wood-Fired Flavour, Optional:
    To infuse a subtle smoky flavour similar to wood-fired cooking, consider adding a pinch of smoked paprika to the sweet potato mixture or topping.
    Another option is to incorporate a few drops of liquid smoke into the casserole for an extra hint of smokiness.

    This will ensure your sweet potato casserole still has rich, deep flavours with a beautifully caramelized topping, even without the wood fire. Enjoy!

    Sweet Potato Casserole with toasted marshmallows in a cast iron pan. A scoop is take out to reveal the inside and a portion is plated. Glassed, dishes, toppings and flowers surround the dish.

    Equipment

    For this recipe, I used the Ooni Dual Sided Grizzler Plate, the Ooni Cast Iron Skillet (9") and my Ooni Karu 16 Multi-Fuel Pizza Oven.

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    Tried this recipe?

    If you get the chance to try this recipe, please drop back and leave us a comment and rating. We would love to know what you think.

    Cheers! James & Elaine

    📖 Recipe

    Wood-fired Sweet Potato Casserole in a cast iron skillet with a scoop taken out

    Wood-fired Sweet Potato Casserole

    Take the classic flavours of a Sweet Potato Casserole to new heights, by cooking with the smoky flavours of lump charcoal and wood! The caramelization of the roasted sweet potatoes in the Ooni Karu 16 oven is life changing! The perfect browning of the marshmallows, as the flames gently roll across the top of the oven is mesmerizing! This "side dish" was so good that my wife enjoyed leftovers with her morning coffee!
    Print Recipe Pin Recipe
    Prep Time 15 minutes mins
    Cook Time 1 hour hr 30 minutes mins
    Total Time 1 hour hr 45 minutes mins
    Course Side Dish
    Cuisine American
    Servings 8 people
    Prevent your screen from going dark

    Ingredients
      

    • 4 pounds medium sized sweet potatoes (approx. 6), washed and dried 1.9 kg
    • ¼ cup packed brown sugar 45g
    • 3 tablespoons butter melted
    • 1 tablespoon fresh sage finely chopped
    • 2 large eggs
    • 1 teaspoon cinnamon
    • ¼ teaspoon nutmeg
    • 1 teaspoon vanilla
    • salt to taste
    • ½ cup half and half optional

    Topping

    • 2 cups miniature marshmallows 110g
    • ⅓ cup chopped pecans 35g

    Instructions
     

    Roast the Sweet Potatoes

    • Preheat the Ooni Karu 16 oven to 400°F (I use a combination of lump charcoal & hardwood to maintain the heat and add layers of flavour).
    • When the oven has reached 375°F, place the Ooni Dual-Sided Grizzler Plate in the oven, ridge side up, to preheat. Pierce potatoes several times.
    • Once the oven has reached 400°F, place the sweet potatoes on the grizzler plate and bake for 1-1¼ hours or until soft. Rotate the potatoes and change positions every 10 minutes to ensure even cooking. The rear of the oven and sides are slightly hotter, so moving positions will ensure consistent cooking.
    • As you add fuel, if the flames are too large and are rolling towards the rear potatoes, causing them to burn, open the fuel hatch and allow the flames to burn down, then replace the hatch.
    • Once the potatoes are done, remove from oven. Set aside until cool enough to handle, then peel off the skin. (Alternatively, cut open and scoop out the pulp). Mash to desired consistency.

    Assemble and Bake the Casserole

    • Add all the ingredients EXCEPT for the toppings (half & half is completely optional).
    • Mix well, then spoon into an oiled Ooni Cast Iron Skillet (9").
    • Bake at 375°F for 25 minutes, until heated through.
    • Top with marshmallows and pecans and bake 5 minutes or until marshmallow are lightly toasted.
    • Note: for the baking process and browning of the marshmallows, I used a couple of chunks of pecan wood to add additional flavour.

    Additional Notes

    • To make ahead, assemble the casserole, do not bake, or put on the toppings. Cover tightly and refrigerate for up to 3 days. Remove from the refrigerator while preheating the oven and bake as per directions.
    Keyword ooni dessert recipes, ooni desserts, ooni non pizza recipes, ooni oven desserts, ooni pizza oven dessert recipes, ooni recipes not pizza
    Tried this recipe?Let us know how it was!

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    Hi, I’m James (aka Zimmy), a home chef who loves to grill year-round. In partnership with my wife Elaine, we work with and passionately promote the stories of local farmers, food producers/purveyors, as well as the products of companies who share our passion for quality, innovation and design.

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