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    Home / Blueberry Hot Fudge Cake

    Blueberry Hot Fudge Cake

    Cast Iron Keto
    by Cast Iron Keto
    Updated: Dec 13,2023
    2 Comments
    5 from 2 votes

    Jump to Recipe Jump to Video Print Recipe

    Indulge your sweet tooth while staying on track with this Blueberry Hot Fudge Cake! Packed with wholesome ingredients and bursting with rich flavors, this delectable treat is sure to satisfy your cravings.

    Blueberry Hot Fudge Cake in a blue enameled cast iron skillet topped with ice cream with two spoon dug into the center.

    This Blueberry Hot Fudge Cake is SPONSORED BY OUR FRIENDS AT BOB’S RED MILL.

    To get the perfect texture, we went with one of our favorite flour combos, Bob's Red Mill Super Fine Almond Flour, Organic Coconut Flour, and Organic Brown Flaxseed Meal. Using both almond flour and coconut flour together is one of our best tricks to mimic all-purpose flour. The flaxseed makes a perfect egg replacer lending an extra fudgy component to the cake.

    Jump to:
    • Preparation and cooking overview
    • Chef's note
    • Ingredients for this blueberry hot fudge cake recipe
    • Ingredient substitutions
    • Additional ingredients
    • Cooking tools required
    • Tools substitute options
    • How to make Blueberry Hot Fudge Cake: step-by-step guide
    • Cooking methods
    • Cooking instructions
    • How to make it healthier
    • Time-saving tips
    • What can I prepare ahead of time?
    • Storage and reheating instructions
    • Leftover storage
    • Leftover reheating methods and best practices
    • Recipe wrap-up and conclusion
    • Frequently asked questions
    • 📖 Recipe

    Preparation and cooking overview

    Create this delectable keto dessert by mixing the dry ingredients together, combining them with the wet ingredients and blueberries, pouring the batter into a cast-iron skillet, adding a cocoa mixture on top, and baking until the cake sets. The total preparation and cooking time for this recipe is approximately 20-25 minutes.

    Chef's note

    Creating keto alternatives for your favorite desserts opens up a world of culinary creativity while keeping your health goals in mind. For this keto dessert, feel free to experiment with different berries or add a sprinkle of chopped nuts for extra texture. Remember to let the cake cool slightly before serving, as it will allow the flavors to develop and the texture to set. Enjoy the awesomeness of indulging in a guilt-free treat that nourishes your body and satisfies your sweet tooth!

    Blueberry Hot Fudge Cake in a blue enameled cast iron skillet
    • Prep Time: 10 minutes
    • Cooking Time: 20 minutes
    • Total Time: 30 Minutes
    • Difficulty Level: Easy
    • Recipe Makes 8 Servings

    For more inspiration check out our Dessert recipe.

    Ingredients for this blueberry hot fudge cake recipe

    • 1 ¼ cups Bob's Red Mill Super-Fine Almond Flour
    • 3 tablespoons Bob's Red Mill Organic Coconut Flour
    • 1 cup brown erythritol
    • ⅔ cup cacao powder
    • 1 tablespoon baking powder
    • ½ teaspoon sea salt
    • 2 tablespoons Bob's Red Mill Organic Brown Flaxseed Meal + 5 tablespoons warm water
    • ⅓ cup melted butter dairy-free if plant-based
    • ¼ cup unsweetened plain almond milk
    • 1 tablespoon pure vanilla extract
    • 1 cup blueberries
    • 1 cup sugar-free chocolate chips (cookie pieces) dairy-free if plant-based

    Ingredient substitutions

    • You can use any brand of sugar-free chocolate chips.
    • If you do not have Swerve granular, you can use any other keto-friendly sweetener like monk fruit sweetener, erythritol, or stevia.
    • You can use any type of unsweetened cocoa powder.
    • You can substitute almond flour with hazelnut flour, coconut flour, or sunflower seed flour.
    • You can use any type of berries like raspberries, blackberries, or strawberries.

    Additional ingredients

    • Heavy cream: adds a luscious richness to the dessert.
    • White vinegar: helps enhance the texture and rise of the cake.
    • Wild blueberry: imparts a slightly tangy and more intense blueberry taste.
    • White chocolate: adds a creamy and sweet element to the dessert.
    • Plant-based yogurt: offers a creamy and tangy flavor while keeping the recipe dairy-free.
    • Dark chocolate: brings a deep and indulgent chocolatey taste to the dessert.

    Cooking tools required

    To make this Blueberry Hot Fudge Cake recipe, you'll need the following tools:

    • Cast Iron Skillet (10-inch)
    • Mixing bowl
    • Hand mixer
    • Rubber spatula
    • Measuring cups and spoons
    • Cake Batter
    • Butter Knife

    Tools substitute options

    • If you do not have a cast iron skillet, you can use a cake pan instead.
    • If you do not have a hand mixer, you can use a whisk or a fork.

    How to make Blueberry Hot Fudge Cake: step-by-step guide

    Cooking methods

    • Baking

    Cooking instructions

    1. Preheat the oven to 350°F (180°C).
    2. In a medium bowl, whisk together the almond flour, coconut flour, sweetener, baking powder, and salt.
    3. Add in the egg, heavy cream, and vanilla extract and mix until just combined.
    4. Stir in the blueberries.
    5. In a cast-iron skillet, melt the butter over medium-low heat.
    6. Pour the batter into the skillet and smooth the top with a spatula.
    7. In a small bowl, whisk together the cocoa powder, sweetener, and boiling water.
    8. Pour the cocoa mixture over the top of the batter into the skillet.
    9. Bake for 20-25 minutes or until the cake is set.
    10. Serve warm with whipped cream or vanilla ice cream, or cream cheese, if desired.

    Chef's pro tip

    A common mistake when making this recipe is overbaking! To prevent this, keep a close eye on the cake towards the end of the recommended baking time. Insert a toothpick into the center, and if it comes out with a few moist crumbs clinging to it, the cake is perfectly done. Remember, it will continue to cook slightly as it cools, so removing it from the oven at the right moment ensures a moist and tender keto dessert that will leave everyone wanting seconds.

    Blueberry Hot Fudge Cake in a blue enameled cast iron skillet

    How to make it healthier

    To make this recipe even healthier, you can try the following tips:

    • Use a low-carb sweetener, such as erythritol or monk fruit, instead of regular sugar.
    • Use unsweetened almond milk instead of heavy cream.
    • Serve with fresh berries instead of whipped cream or ice cream.

    Time-saving tips

    • Use frozen blueberries instead of fresh blueberries.

    What can I prepare ahead of time?

    • You can mix the dry ingredients together ahead of time and store them in an airtight container until ready to use.
    • You can also measure out the ingredients and store them in separate containers until ready to use.

    Storage and reheating instructions

    Leftover storage

    Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.

    Leftover reheating methods and best practices

    To reheat leftovers, microwave for 30-60 seconds until warm or bake in the oven at 350°F for 5-10 minutes.

    Recipe wrap-up and conclusion

    In conclusion, the Blueberry Hot Fudge Cake is the ultimate dessert that combines the perfect harmony of blueberries and chocolate. This easy-to-make treat will leave you in pure bliss with its moist and tender texture. Elevate the experience by serving it warm alongside fluffy whipped cream or a generous scoop of creamy vanilla ice cream. Whether you're following a low-carb or keto lifestyle, this dessert is a delightful indulgence that will satisfy your sweet cravings without compromising on taste. Get ready to dive into a cozy and heavenly dessert experience that will have you coming back for more!

    If you give this recipe a try, be sure to tag @castiron_keto and @bobsredmill on Instagram!

    Blueberry Hot Fudge Cake in a blue enameled cast iron skillet

    Frequently asked questions

    Fudge cake is made of a combination of ingredients like cocoa powder, almond flour, coconut flour, erythritol, baking powder, eggs, heavy cream, unsalted butter, vanilla extract, and blueberries.

    Yes, blueberry goes well with chocolate, as it adds a fruity and sweet taste to the chocolate. The combination of blueberry and chocolate creates a unique and delicious taste.

    Blueberry pairs well with a variety of flavors, including lemon, vanilla, cinnamon, and chocolate. These flavors complement the sweetness and tartness of blueberries.

    📖 Recipe

    Blueberry Hot Fudge Cake in a blue enameled cast iron skillet

    Blueberry Hot Fudge Cake

    This Blueberry Hot Fudge Cake is absolutely decadent while being totally plant-based, low-carb, and ready in just minutes. Grab some ice cream and a spoon and dig in!
    5 from 2 votes
    Print Rate Pin Recipe
    Course: Dessert
    Cuisine: American
    Keyword: keto cake
    Prep Time: 10 minutes minutes
    Cook Time: 20 minutes minutes
    Total Time: 30 minutes minutes
    Servings: 8
    Calories: 301kcal

    Ingredients

    • 1 ¼ cups Bob's Red Mill Super-Fine Almond Flour
    • 3 tablespoons Bob's Red Mill Organic Coconut Flour
    • 1 cup brown erythritol
    • ⅔ cup cacao powder
    • 1 tablespoon baking powder
    • ½ teaspoon sea salt
    • 2 tablespoons Bob's Red Mill Organic Brown Flaxseed Meal + 5 tablespoons warm water
    • ⅓ cup melted butter dairy-free if plant-based
    • ¼ cup unsweetened plain almond milk
    • 1 tablespoon pure vanilla extract
    • 1 cup blueberries
    • 1 cup sugar-free chocolate chips dairy-free if plant-based

    Instructions

    • Preheat oven to 400° F.
    • In a large bowl, mix together all of the ingredients except the blueberries and chocolate chips until smooth.
    • Fold in the blueberries and chocolate chips and transfer the batter to an 8" cast-iron skillet or baking dish. Carefully transfer to the oven and bake for 20-25 minutes until the top and edges are set but the center is still uncooked.
    • Let cool for 5 minutes before serving.

    Video

    Notes

    Store any leftovers in an airtight container in the refrigerator for up to 5 days. Reheat in the microwave or oven until hot. 

    Nutrition

    Nutrition Facts
    Blueberry Hot Fudge Cake
    Amount Per Serving
    Calories 301 Calories from Fat 225
    % Daily Value*
    Fat 25g38%
    Saturated Fat 10g63%
    Trans Fat 0.3g
    Polyunsaturated Fat 1g
    Monounsaturated Fat 3g
    Cholesterol 20mg7%
    Sodium 226mg10%
    Potassium 300mg9%
    Carbohydrates 26g9%
    Fiber 19g79%
    Sugar 3g3%
    Protein 6g12%
    Vitamin A 246IU5%
    Vitamin C 2mg2%
    Calcium 130mg13%
    Iron 2mg11%
    *

    Nutritional values are estimates only and do not include carbs from sugar alcohols.

    # Hashtag with us!Don't forget to mention @castiron_keto or tag #castironketo on Instagram with your creations! We love seeing what you're making.
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    Reader Interactions

    Comments

    1. Cindy says

      June 25, 2022 at 3:03 pm

      5 stars
      Wow! This is phenomenal! Super blend of melting gooeyness and flavor! Doesn’t even need that scoop of vanilla ice cream! This recipe will definitely go in my “repeat offender” catalog!

      Reply
      • Cast Iron Keto says

        June 26, 2022 at 2:59 pm

        So glad you enjoyed it, it's definitely in our repeat offender folder too 😂

        Reply
    5 from 2 votes (1 rating without comment)

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