Keto-Friendly Cinnamon “Sugar” Donuts
There are mornings when I want something that feels a little special.
Not a complicated breakfast. Not a huge production.
Just a warm, soft donut with that familiar cinnamon-sugar flavor I remember from bakery mornings.
These Keto-Friendly Cinnamon “Sugar” Donuts have become my answer to that craving.
They’re tender, lightly sweet, wonderfully cinnamon-y, and coated in a sugar-free cinnamon topping that gives every bite that nostalgic donut-shop feeling—without all the traditional sugar and flour.
I first made these on a quiet weekend morning when I was craving donuts but didn’t want to spend my morning frying dough.
I had almond flour in the pantry, some eggs in the refrigerator, and a jar of my favorite granulated keto sweetener.
So I decided to experiment.
The first batch smelled amazing as it baked.
That warm combination of cinnamon, vanilla, and butter filled the kitchen, and before the donuts were even completely cool, everyone was asking when they could have one.
I tossed the warm donuts in cinnamon “sugar,” took the first bite, and honestly couldn’t believe how much they reminded me of the cinnamon donuts I used to love.
The outside was sweet and cinnamon-y.
The center was soft and tender.
And they were especially good with a cup of hot coffee.
Now these are one of my favorite weekend treats.
They’re easy enough to make without much fuss, but they still feel like a little reward.
Recipe at a Glance
Prep Time: 10 minutes
Cook Time: 12–15 minutes
Total Time: About 25 minutes
Servings: 8 donuts
Course: Breakfast / Dessert
Cuisine: American-inspired
Diet: Keto / Low Carb
Ingredients
For the Donuts
1½ cups almond flour
¼ cup granulated keto-friendly sweetener
1½ teaspoons baking powder
1½ teaspoons ground cinnamon
¼ teaspoon salt
2 large eggs
¼ cup unsalted butter, melted
¼ cup unsweetened almond milk
1 teaspoon vanilla extract
¼ teaspoon xanthan gum, optional
For the Cinnamon “Sugar” Coating
¼ cup granulated keto-friendly sweetener
1½ teaspoons ground cinnamon
2 tablespoons melted butter
How to Make Keto-Friendly Cinnamon “Sugar” Donuts
1. Preheat the Oven
Preheat your oven to 350°F (175°C).
Lightly grease a 6- or 8-cavity donut pan with nonstick spray or melted butter.
Make sure you grease the sides and center of each cavity well.
2. Mix the Dry Ingredients
In a large bowl, whisk together:
Almond flour
Keto sweetener
Baking powder
Cinnamon
Salt
Xanthan gum, if using
Mix thoroughly so the cinnamon and baking powder are evenly distributed.
3. Mix the Wet Ingredients
In a separate bowl, whisk together:
Eggs
Melted butter
Almond milk
Vanilla extract
Make sure the melted butter isn’t extremely hot before adding the eggs.
4. Combine the Mixtures
Pour the wet ingredients into the dry ingredients.
Stir gently until a thick, smooth batter forms.
Don’t overmix.
The batter should be soft enough to spoon or pipe into the donut pan.
5. Fill the Donut Pan
Spoon the batter into the cavities or transfer it to a piping bag.
Pipe the batter evenly into each donut cavity.
Fill each one approximately ⅔ to ¾ full.
Avoid filling them all the way to the top because they’ll puff as they bake.
6. Bake
Bake for approximately 12–15 minutes, or until the donuts are lightly golden and a toothpick inserted into the center comes out clean.
Don’t overbake them.
Almond flour can become dry if left in the oven too long.
7. Cool
Allow the donuts to cool in the pan for about 5 minutes.
Then carefully transfer them to a wire rack.
Let them cool enough to handle, but don’t let them become completely cold if you’re coating them with cinnamon “sugar.”
The coating sticks especially well while they’re still slightly warm.
8. Make the Cinnamon “Sugar”
Combine the keto sweetener and cinnamon in a shallow bowl.
Melt the butter in another small bowl.
9. Coat the Donuts
Lightly brush each warm donut with melted butter.
Immediately dip or roll it in the cinnamon-sweetener mixture.
Turn it gently until the entire surface is coated.
Repeat with the remaining donuts.
10. Serve
Serve the donuts warm or at room temperature.
They’re especially delicious with coffee, tea, or a glass of unsweetened almond milk.
Why You’ll Love These Donuts
Low in carbohydrates
No traditional wheat flour
No yeast
No deep frying
Ready in about 25 minutes
Soft and tender
Warm cinnamon flavor
Sweet without traditional sugar
Perfect for breakfast
Great as an afternoon treat
Easy enough for beginners
My Best Tips
Grease the Donut Pan Well
Keto baked goods can sometimes stick more easily than traditional flour-based ones.
A generous coating of nonstick spray makes removing the donuts much easier.
Don’t Overbake
This is probably the most important tip.
As soon as the donuts are set and lightly golden, take them out.
Overbaking can turn a soft donut into a dry one.
Use a Piping Bag
A piping bag makes filling the donut pan quick and clean.
You can also use a zip-top bag with one corner snipped off.
Use Fine Almond Flour
Finely ground blanched almond flour gives the donuts a softer, more bakery-like texture.
Almond meal will produce a coarser donut.
Coat While Warm
The melted butter and cinnamon coating cling best while the donuts are still slightly warm.
What Sweetener Should I Use?
Use a granulated keto-friendly sweetener that measures similarly to sugar.
Common options include:
Erythritol
Monk fruit blends
Allulose
Other granulated low-carb sweeteners
Different sweeteners have different levels of sweetness and can behave differently when baked.
Follow the package conversion if your sweetener isn’t a 1:1 sugar replacement.
Can I Use Coconut Flour?
Yes, but do not substitute it cup-for-cup.
Coconut flour absorbs much more liquid than almond flour, so the recipe needs to be reformulated when using it.
For the easiest result, use finely ground almond flour.
Can I Use Dairy Milk?
If you’re following keto, unsweetened almond milk is an easy choice.
You can also use another unsweetened low-carb milk alternative.
Regular milk contains more carbohydrates.
Can I Use Coconut Oil Instead of Butter?
Yes.
Melted coconut oil works well in the donut batter.
It will give the donuts a subtle coconut flavor unless you use refined coconut oil.
Can I Make These Dairy-Free?
Yes.
Use a dairy-free butter substitute or coconut oil in both the donuts and the coating.
Make sure your other ingredients are also dairy-free.
Can I Make These Egg-Free?
Eggs provide structure and moisture in this recipe, so replacing them requires some adjustment.
An egg substitute may work, but the texture will be different.
For the best results, I recommend using eggs.
Can I Add More Cinnamon?
Absolutely.
If you’re a serious cinnamon lover, increase the cinnamon in the batter to 2 teaspoons.
You can also make the coating extra cinnamon-heavy.
Can I Add Nutmeg?
Yes!
A small pinch of nutmeg gives the donuts an even more classic bakery-donut flavor.
Try adding ⅛–¼ teaspoon to the batter.
Can I Add Vanilla?
Definitely.
A little extra vanilla makes the cinnamon flavor taste richer.
You can increase it to 1½ teaspoons if you like.
Can I Add a Glaze?
Absolutely.
If you want something different from the cinnamon coating, make a simple keto glaze with:
Powdered keto sweetener
Unsweetened almond milk
Vanilla extract
Whisk until smooth and drizzle over cooled donuts.
Can I Make Chocolate Donuts?
Yes.
Replace a small portion of the almond flour with unsweetened cocoa powder.
You may need to adjust the sweetener and liquid slightly depending on how much cocoa you use.
Chocolate-cinnamon donuts would be delicious with the same cinnamon coating.
Can I Add Nuts?
Definitely.
Finely chopped pecans or walnuts can be folded into the batter.
Keep the pieces small so they don’t interfere with the donut texture.
Can I Add Cream Cheese?
Yes.
A little softened cream cheese can make the donuts richer and slightly more tender.
You can also make a keto cream cheese glaze for the top.
Can I Fry These Donuts?
This recipe is designed for baking in a donut pan.
Traditional frying requires a different dough and method because almond flour doesn’t behave like wheat-based yeast dough.
For an easy keto option, baked donuts are the way to go.
Can I Make These in an Air Fryer?
If your air fryer has a suitable donut pan or silicone donut molds, you can experiment with air frying.
Use a lower temperature, around 320–330°F (160–165°C), and start checking them early.
Cooking times vary considerably between air fryers.
How Do I Keep the Donuts From Sticking?
Grease the donut pan generously before adding the batter.
Allow the baked donuts to cool for several minutes before attempting to remove them.
Run a thin silicone spatula or butter knife carefully around the edges if necessary.
How Do I Keep Them Moist?
Don’t overbake them.
Also, store them in an airtight container once completely cooled.
Almond flour donuts can dry out when exposed to air for too long.
Can I Make Them Ahead?
Yes.
These donuts are perfect for preparing ahead for breakfast.
Bake them the day before, cool completely, and store them in an airtight container.
For the freshest cinnamon coating, you can brush and coat them shortly before serving.
How Long Do They Last?
Store cooled donuts in an airtight container in the refrigerator for approximately 4–5 days.
Let them come closer to room temperature before serving, or warm them gently.
Can I Freeze Them?
Yes.
Freeze the baked donuts without the cinnamon coating for best results.
Place them in a freezer-safe container or bag with parchment between layers.
Freeze for approximately 2–3 months for best quality.
Thaw overnight in the refrigerator or at room temperature, then warm gently and add the cinnamon coating.
How Should I Reheat Them?
Warm individual donuts in the microwave for approximately 10–15 seconds.
You can also warm them briefly in a low-temperature oven.
Don’t overheat them because they can become dry.
What Should I Serve With Keto Cinnamon Donuts?
These donuts are delicious with:
Coffee
Espresso
Cappuccino
Unsweetened tea
Scrambled eggs
Bacon
Sausage
Greek yogurt
Fresh berries
For a weekend breakfast, I love serving them alongside eggs and crispy bacon.
The combination of savory and sweet is perfect.
Frequently Asked Questions
Why are my keto donuts dry?
The most common reason is overbaking.
Almond flour baked goods can go from perfectly tender to dry fairly quickly.
Start checking them around the 12-minute mark.
Why did my donuts fall apart?
They may have been removed from the pan while still too hot.
Let them cool for several minutes before transferring them to a rack.
Why aren’t my donuts fluffy?
Check that your baking powder is fresh.
Also avoid overmixing the batter.
Why did the cinnamon coating fall off?
The donuts may have been too cold or the butter layer was too thin.
Brush the donuts lightly with melted butter while they’re still slightly warm, then immediately coat them.
Can I use powdered sweetener?
Powdered sweetener works for the coating, but a granulated sweetener gives more of that traditional “sugar” texture.
Do these taste exactly like regular donuts?
They won’t be identical to traditional wheat-flour fried donuts.
They’re a baked, low-carb version with a soft almond-flour texture.
But the combination of cinnamon, butter, vanilla, and the sweet coating gives them that comforting donut flavor.
Are these suitable for a strict keto diet?
They can fit into a keto diet when made with a low-carb sweetener and almond flour, but individual carbohydrate targets vary.
Always calculate the nutrition using your exact ingredients and serving size.
Approximate Nutrition
Per donut, based on eight donuts:
Calories: approximately 220
Protein: approximately 6g
Fat: approximately 20g
Total Carbohydrates: approximately 7g
Fiber: approximately 3g
Net Carbohydrates: approximately 4g
Nutrition is an estimate and will vary depending on the sweetener, almond flour, butter, and other ingredients used.
Final Thoughts
I think everyone deserves a donut morning every once in a while.
Even when you’re trying to keep things low-carb.
That’s exactly why I love these Keto-Friendly Cinnamon “Sugar” Donuts.
They’re not trying to be complicated.
They’re not covered in ten different toppings.
They’re just warm, soft, buttery donuts with plenty of cinnamon and that sweet coating that takes me right back to those old-fashioned bakery treats.
I especially love making them on slow weekend mornings.
I’ll make a cup of coffee while the donuts are baking, and by the time the kitchen starts smelling like cinnamon and vanilla, everyone seems to find their way into the kitchen.
There’s something about homemade donuts that makes an ordinary morning feel special.
And the best part is that these don’t require yeast, kneading, rolling, or frying.
Just mix the batter, fill the pan, bake, brush with butter, and toss them in cinnamon “sugar.”
That’s it.
Sometimes simple really is better.
Soft, buttery, warmly spiced, and coated in sweet cinnamon goodness, these Keto-Friendly Cinnamon “Sugar” Donuts are the perfect little treat when you’re craving a classic donut without all the traditional carbs. 🍩✨🤎