Sugar-Free Keto Blondies Recipe

These easy sugar free blondies are soft, buttery, and made with almond flour and a brown sugar substitute for an easy keto friendly and low carb dessert. Our family has always preferred blondies over brownies, so I was skeptical that a low carb version would still have the same rich, chewy texture and buttery brown sugar flavor. (Hint..they do!)

Have you tried blondies before? Think of them like a blond brownie without the chocolate, and instead you have a rich, caramel flavor. My recipe won't taste exactly like traditional blondies since the almond flour and sugar substitute give them a slightly different texture and taste, but they have that same buttery, brown sugar-style flavor with a soft center and lightly crisp edges. Kid and sweet tooth approved!

If you're in the mood for more low carb sweets, try our sugar free peanut butter cookies, sugar-free chocolate covered almonds, low carb peanut butter fudge, or check out our low carb cookies and sugar free candy collections.

Before You Bake the Keto Blondies...

• We tested this recipe with Swerve Brown - When we first created these blondies in 2019, we used Swerve Brown in place of regular brown sugar to keep them low carb and keto-friendly. It gives the blondies that familiar brown sugar-style flavor.
• Other 1:1 brown sugar substitutes should work - A monk fruit or allulose brown sugar substitute should be a reasonable swap, but we haven't tested those versions yet, so the sweetness and texture may vary.
• Almond flour gives them their soft texture - Use finely ground almond flour and don't substitute coconut flour 1:1.
• Don't overbake them - Pull the blondies when the edges are set and the center is still slightly soft. They'll continue to firm up as they cool.
• Add-ins are optional - Sugar-free chocolate chips or chopped nuts work well if you want to change them up.

Ingredient Notes

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• Almond flour - You can use almond flour or a 1:1 all purpose flour alternative. Do not use coconut flour, it absorbs moisture differently than almond flour.
• Brown sugar substitute - We used Swerve when this recipe was created back in 2019. Golden monk fruit and golden allulose are also popular 1:1 sugar substitutes, but we haven't tried the recipe with those sweeteners.
• Butter- we used regular salted butter. Unsalted can also be used, just add an extra pinch of salt to the batter.
• Baking powder
• Salt
• Egg
• Vanilla extract

How to Make Sugar Free Blondies (Keto)

Step 1: Prep the oven and pan

Preheat the oven to 350°F and place the rack in the middle position. Lightly grease a 9x9-inch baking pan.

Step 2: Mix the dry ingredients

In a small bowl, whisk together the almond flour, baking powder, and salt until evenly combined.

Step 3: Mix the wet ingredients

In a medium bowl, melt the butter in the microwave. Stir in the Swerve Brown until well combined, then add the egg and vanilla and mix until smooth.

Step 4: Make the low carb blondie batter

Stir the almond flour mixture into the butter mixture just until combined. If you're adding sugar-free chocolate chips, fold them in now.

Spread the batter evenly in the prepared baking pan.

Step 5: Bake

Bake for 20-23 minutes, or until the edges are set and the top looks mostly set but the center is still slightly soft.

Start checking at the 20-minute mark and add a few more minutes only if needed.

Step 6: Cool before slicing

Let the blondies cool in the pan before cutting into squares. They'll continue to firm up as they cool, and pulling them from the oven while the center is still a little soft helps keep them from turning dry and crumbly. Enjoy!

Recipe Tips

• Don't overbake the blondies - Pull them from the oven when the edges are set but the center still looks slightly soft. They'll continue to firm up as they cool, and overbaking can make almond flour blondies dry and crumbly.
• Let them cool before slicing - The center sets more as the blondies cool, which helps them hold together.
• Choose your texture - I like the softer center pieces, while my husband prefers the firmer, more baked corner pieces, so this recipe works out pretty well in our house.
• Variations - You can keep them plain or add sugar-free chocolate chips, chopped nuts, or butterscotch-style chips for an easy variation.

Storage & Freezing

• Store cooled blondies in an airtight container at room temperature for 2-3 days or in the refrigerator for up to 1 week. For the softest texture, let refrigerated blondies sit at room temperature for a few minutes before serving.
• To freeze, wrap individual blondies or separate layers with parchment paper and place them in a freezer-safe container. Freeze for up to 2-3 months and thaw at room temperature before serving.
• For the best texture, make sure the blondies are completely cool before storing or freezing so excess moisture doesn't get trapped in the container.

Nutrition & Macros

Per blondie:

• Calories: about 110
• Protein: 2g
• Total carbs: about 13g
• Fiber: about 1g
• Sugar alcohols: about 11-12g
• Net carbs: about 1-2g
• Fat: 11g

Note: Most of the total carbs come from the Swerve Brown sugar substitute. Swerve contains erythritol and other low-glycemic sweetening ingredients that contribute to the total carbohydrate count but very little to net carbs. After subtracting fiber and sugar alcohols, each blondie has approximately 1-2g net carbs. The exact numbers can vary slightly depending on the almond flour and sweetener used.

Low Carb Sugar Free Cookies & Candies

Looking for more low carb sugar free cookies or candy recipes? We have many recipes for everyday treats or for Christmas.

• Chocolate covered strawberries (no sugar)
• Keto rum balls
• Sugar free chocolate mint buttons

Recipe

Keto Blondies (Sugar-Free)

Jenni Cole

A healthy take on low carb keto blondies that are also sugar free and gluten free. You'll love this easy variation of the classic blondie that'll quickly become a family favorite.

4.50 from 81 votes

Print Recipe Pin Recipe Email recipe

Prep Time 7 minutes mins

Cook Time 22 minutes mins

Total Time 29 minutes mins

Course Desserts

Cuisine American

Servings 16 servings

Calories 110 kcal

Equipment

• 1 9x9 square baking pan

Ingredients

  

1x2x3x

• 1 ⅓ cup almond flour
• 1 teaspoon baking powder
• ½ teaspoon salt
• 1 cup Swerve brown sugar substitute
• ½ cup butter
• 1 egg
• 1 teaspoon vanilla extract

Instructions

 

• Preheat the oven to 350 F and position the rack to the center position. Grease a 9x9 baking pan and set it aside.
• Whisk together the almond flour, baking powder, and salt in a small bowl.
• In a medium-sized bowl, melt the butter in the microwave. Add the Swerve brown sugar and blend well.
• Mix in the egg and vanilla, mix until well combined.
• Stir the flour mixture into the sugar mixture. If you're adding chocolate chips or nuts, add them now.
• Spread the mixture evenly into the greased baking pan. Bake for 20-23 minutes until the blondies are starting to set but aren't completely firm. They'll continue cooking as they cool.
• Set on a baking rack and wait until they've cooled completely to cut the gluten-free keto blondies. Enjoy!

Notes

• Use almond flour - Coconut flour cannot be substituted 1:1 for almond flour in this recipe because it absorbs much more liquid. For best results, use the exact amount of almond flour listed.
• Add your favorite mix-ins - Stir in chopped nuts or sugar-free chocolate chips for an easy variation.
• Don’t overbake - Remove the blondies when the edges are set and the center still looks slightly soft. They’ll continue to firm up as they cool.
• Net carbs - The total carb count includes sugar alcohols from the Swerve Brown. After subtracting fiber and sugar alcohols, each blondie has approximately 1–2g net carbs.

Nutrition

Serving: 1barCalories: 110kcalCarbohydrates: 13gProtein: 2gFat: 11gSaturated Fat: 4gPolyunsaturated Fat: 6gCholesterol: 27mgSodium: 156mgFiber: 1gSugar: 12g

Keyword gluten free blondies, keto blondies, sugar free

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