Get ready to relive fun fair memories with this Keto Funnel Cake. They're sweet, fried, and dusted with powdered sugar. We've made a recipe that's just as tasty but fits into a low-carb diet! Our keto funnel cakes are unique because they're gluten-free and sugar-free. You'll love the crispy outside and soft inside, all without using almond flour or regular sugar. Let's start cooking!

Jump to:
- Preparation and cooking overview
- Chef's note
- 🍰 Ingredients for this keto funnel cake recipe
- Ingredient substitutions
- Additional ingredients
- Cooking tools required
- Tools substitute options
- How to make Keto Funnel Cake: step-by-step guide
- Cooking methods
- Preparation steps
- Cooking instructions
- Topping ideas for funnel cakes
- Nutritional facts
- How to make it healthier
- Time-saving tips
- What can I prepare ahead of time?
- Storage and reheating instructions
- Recipe wrap-up and conclusion
- Frequently asked questions
- 📖 Recipe
Preparation and cooking overview
Making this recipe is a breeze! Simply whisk together the batter ingredients until smooth, transfer it to a piping bag, and slowly add it to hot oil in a circular pattern. Fry until golden brown, about 3 minutes per side, and voila! In no time, you'll have a mouthwatering, low-carb dessert that will satisfy your cravings and delight your taste buds.
Chef's note
Whether you're hosting a fun game day party or just want a tasty treat, this recipe is perfect. You can even mix things up by adding a bit of cinnamon or vanilla extract to the batter for extra flavor. And don't forget, using a star-shaped piping tip will make your funnel cakes look super fancy and wow your friends and family.
🍰 Ingredients for this keto funnel cake recipe
Here's the essential ingredient list for creating a classic funnel cake with a delightful keto twist. You can easily find all these ingredients in a well-stocked keto pantry!
Ingredient substitutions
Not a fan of something listed in the ingredients? No problem! Here are some easy keto-friendly swaps you can make:
Additional ingredients
Cooking tools required
To make this keto funnel cake recipe, you'll need the following tools:
Tools substitute options
How to make Keto Funnel Cake: step-by-step guide
Cooking methods
Preparation steps
- Gather all the required ingredients for the recipe.
- Measure all the dry and wet ingredients.
- Set up your cooking area.
Cooking instructions
- Heat the oil in a large cast-iron skillet over medium heat until it reaches 350°F.
- In a medium bowl, whisk together all of the ingredients until smooth. Transfer the mixture to a piping bag with a large ½" tip.
- Slowly add the batter to the hot oil in a circular pattern. Fry until golden, about 3 minutes per side.
- Remove the fried items and place them on a paper towel-lined plate to drain excess oil.
- Sprinkle the fried items with powdered erythritol for a touch of sweetness.
- Your homemade funnel cakes are ready to serve.
Chef's pro tip
Allow the batter to rest for about 10-15 minutes before frying. This gives time for the ingredients to blend well to get a smoother batter and tastier funnel cakes. Good things come to those who wait, and this delightful treat is no exception.
Topping ideas for funnel cakes
When it comes to toppings, there's plenty of room for creativity. Here are some suggestions to make your funnel cakes even more delicious.
Note: Please note that adding toppings, such as whipped cream, fresh berries, and sauces, may increase the overall calorie content of the recipe. Check out the recipe card for detailed nutritional information.
Nutritional facts
Amount Per Serving
Calories:475
Calories from fat: 450
Fat: 50g (77% Daily Value)
Saturated Fat: 35g (219% Daily Value)
Cholesterol: 225mg (75% Daily Value)
Sodium: 96mg (4% Daily Value)
Potassium: 162mg (5% Daily Value)
Carbohydrates: 3g (1% Daily Value)
Fiber: 2g (8% Daily Value)
Sugar: 1g (1% Daily Value)
Protein: 6g (12% Daily Value)
Vitamin A: 947IU (19% Daily Value)
Calcium: 75mg (8% Daily Value)
Iron: 1mg (6% Daily Value)
How to make it healthier
You can make this low-carb funnel cake even healthier by following these tips:
Time-saving tips
What can I prepare ahead of time?
Storage and reheating instructions
Storage
Reheating
Recipe wrap-up and conclusion
Our Keto Funnel Cake brings a sweet, crunchy delight that'll make your taste buds dance and stir up memories of old-time fairs. With a short prep time and simple ingredients, you'll recreate this classic treat that boasts a golden, crispy outside and a sprinkle of faux powdered sugar. So, why wait? Get into the kitchen, whip up this delightful dessert, and give yourself a sweet, keto-friendly treat.
We'd love to know how you liked the recipe! Snap a photo of your yummy creation, share it on social media, and don't forget to tag us. And if you know someone else who'd enjoy this, share the recipe with them too!
Frequently asked questions
📖 Recipe

Keto Funnel Cake
Ingredients
- 2 large eggs
- ¼ cup unsalted butter melted
- ½ teaspoon baking powder
- 1 scoop whey protein isolate
- 1 tablespoon coconut flour
- ½ teaspoon vanilla extract
- ½ teaspoon xanthan gum
- Pinch of salt
- 2 cups coconut oil for frying
- powdered erythritol for serving
Instructions
- Heat the oil in a large cast-iron skillet over medium heat until it reaches 350°F.
- In a medium bowl, whisk together all of the ingredients until smooth. Transfer the mixture to a piping bag with a large ½" tip.
- Slowly add the batter to the hot oil in a circular pattern. Fry until golden, about 3 minutes per side.
- Remove the fried items and place them on a paper towel-lined plate to drain excess oil.
- Sprinkle the fried items with powdered erythritol for a touch of sweetness.
- Your homemade funnel cakes are ready to serve.
Michael Eric Berube says
I've always thought someone should have a food truck (or a restaurant in the Old Port) called K.P. (which plays as Kitchen Patrol from the military or Keto Paleo) that was strictly Keto and Paleo food. (Make it Locavore and Organic and you'll have us lined up all the way to the Arts District!)
Thanks for all the great recipes!
Linda Johnson says
What is whey protein isolate and why does the recipe need?
Alex Lester says
It is what creates the light airy inside and the crunchy outside. Whey protein isolate is just that, just whey protein. You should be able to find it at most grocers in the supplement sections with the protein powders.
Meika says
Hits the spot! I used vegetable oil because it’s all I had (will try coconut oil next time). I put allulose in my blender to make it powdered. Just like a funnel cake at the fair!
Dana Chambers says
What can I use instead of Whey Protein? If I omit it will the batter work the same. Thank you in advance. God bless. Dana
Cast Iron Keto says
Hi Dana, this recipe won't work without the Whey Protein Isolate and there's not a good direct replacement. Egg White Protein may work but we haven't tested it so we can't be sure and I'm sure the ratios would be different.
Sl says
Can I save the coconut oil to use another time?
Raquel says
I liked it when considering an alternative option to flour funnel cake… although the grittiness threw me off a little. I used egg white protein and it worked fine!
Janna Rodriguez says
Not a funnel cake, crispy yes flavorless, greasy and not chewy. might make a good coating like for chicken strips.