Low-Carb Strawberry Lemon Blondies, Keto and Gluten-Free

These low carb strawberry lemon blondies are soft, chewy, and bursting with bright citrus and sweet berry flavors. We added fresh lemon zest and chopped strawberries to a classic blondie base for a fun, keto-friendly twist that still delivers the texture you expect from a great blondie.

Keto Lemon Blondie Recipe Features

• Chewy & tender: soft center with lightly crisp edges.
• Low carb: about 4g net carbs per serving — suitable for many keto and low-carb diets.
• Gluten-free: made with almond and coconut flours.
• Customizable: swap strawberries for other berries or use lime instead of lemon for a zesty variation.
• Freezer friendly: un-frosted blondies freeze well for up to one month.

What Sweeteners Work Best in This Recipe?

For the blondie base, a granular sweetener like allulose produces the best chew and keeps the texture soft even after refrigeration. Bocca Sweet and similar granular allulose-based sweeteners are excellent choices. Other granular sweeteners such as erythritol, monk fruit blends, Swerve, or xylitol will work, but they can make the bars firmer, especially if stored cold.

Liquid sweeteners are not recommended for the batter because they alter the dry-to-wet balance and make the texture unpredictable. For the frosting, powdered allulose or a powdered blend of sweeteners (powdered erythritol with monk fruit, for example) works well. Liquid sweeteners can be used in frosting if you prefer, but powdered sweeteners give the frosting a more traditional, stable consistency.

Tips for the Blondie Batter

1. Melt the butter gently until just softened — avoid boiling. Short bursts in the microwave work well.
2. Add the white chocolate chips to the warm butter and let them soften before combining with the dry ingredients; this helps create a glossy, cohesive batter.
3. Whisk or sift your dry ingredients to remove lumps. Almond flour frequently clumps, so thorough mixing is important for an even texture.
4. Combine the butter/white chocolate mixture with vanilla, lemon zest, and room-temperature eggs one at a time. Adding eggs gradually helps the batter emulsify and keeps it smooth.
5. The batter will be thick. Press it evenly into a parchment-lined, greased 9×9 pan for easy removal after baking.

Tips for the Frosting

1. Start with cold, full-fat cream cheese. Cube it and beat until smooth to avoid lumps.
2. Scrape the bowl sides during mixing to ensure an even texture.
3. Add powdered sweetener, vanilla, and lemon juice, then blend in heavy cream. Begin on low, then increase speed to whip until light and fluffy.
4. Be careful not to overbeat—over-whipping can separate the mixture and make it runny.

Storage and Serving Suggestions

Store these blondies in the refrigerator. Chilled, they maintain a pleasantly chewy and slightly sticky texture. Keep them covered or in an airtight container to preserve freshness for up to four days.

If you want to freeze leftovers, remove any frosting first. Unfrosted blondies freeze well for up to one month when wrapped or stored in an airtight container. Thaw overnight at room temperature, then frost just before serving for the best texture and flavor.

More Recipes You Might Enjoy

• Maple Pecan Blondies
• S’mores Brownies
• Low Carb Millionaire Bars
• Chewy Pecan Caramel Squares
• Blueberry Cheesecake Bars
• Gluten-Free Sugar Donuts

Recipe: Low Carb Strawberry Lemon Blondies

Ingredients

Blondie Batter

• 2/3 cup allulose (granular sweetener)
• 2 cups almond flour
• 6 Tbsp coconut flour
• 1/4 tsp xanthan gum
• 2 tsp baking powder
• 1/2 tsp salt
• 2 tsp vanilla extract
• 2/3 cup melted butter
• 2/3 cup melted sugar-free white chocolate (e.g., white chocolate-style chips)
• 3 large room-temperature eggs
• 3/4 cup fresh chopped strawberries
• 2 Tbsp lemon rind (zest)
• 1/2 tsp strawberry bakery emulsion (optional)

Frosting

• 8 ounces cream cheese, full fat
• 1/4 cup powdered allulose (or your preferred powdered sweetener)
• 1 cup heavy whipping cream
• 1 tsp vanilla
• 1 Tbsp fresh lemon juice
• 1 drop pink food coloring (optional)

Instructions

Blondie Batter

1. Preheat oven to 350°F (175°C). Grease and line a 9×9-inch square pan with parchment paper.
2. Melt the butter gently, then stir in the white chocolate chips until melted and glossy. Set aside to cool slightly.
3. In a large bowl, whisk together almond flour, coconut flour, baking powder, salt, xanthan gum, and granular allulose until well combined and free of lumps.
4. Add the butter/white chocolate mixture to the dry ingredients, followed by vanilla, lemon zest, and one room-temperature egg. Whisk until combined.
5. Add the remaining eggs one at a time, mixing after each addition until the batter is smooth and cohesive.
6. Fold in the chopped strawberries gently so they distribute evenly through the batter.
7. Spread the batter evenly into the prepared 9×9 pan. The batter will be thick; use a spatula to smooth the top.
8. Bake 27–32 minutes until edges are golden and the center is set but still slightly soft. If the top browns too quickly, cover loosely with foil or parchment and continue baking.
9. Remove from the oven and cool completely on a wire rack before frosting.

Frosting

1. Cube cold cream cheese and beat in a stand mixer or with a hand mixer until smooth and lump-free. Scrape the bowl sides as needed.
2. Add powdered sweetener, vanilla, and lemon juice, then mix to combine.
3. Pour in the heavy cream and start mixing on low, then increase speed and whip until the mixture becomes light and fluffy, resembling a buttercream texture. Add a drop of pink coloring if desired.
4. Spread the frosting over cooled blondies and slice into 16 pieces.

Notes

Use room-temperature eggs for best results. Cold eggs can cause the batter to seize; if needed, warm eggs quickly in a bowl of hot tap water for a few minutes.

Nutrition (approximate per serving)

• Calories: 242
• Total Fat: 22g
• Saturated Fat: 9g
• Cholesterol: 72mg
• Sodium: 255mg
• Total Carbohydrates: 6g
• Fiber: 2g
• Net Carbohydrates: 4g
• Sugar: 3g
• Protein: 6g

These strawberry lemon blondies are a bright, satisfying low-carb treat that balances citrus tang and berry sweetness with a chewy, tender crumb. Enjoy them chilled or at room temperature, and customize the recipe with your favorite berries or citrus for new flavor combinations.