If you have a soft spot for bright, tangy flavors wrapped in a fluffy, cloud-like topping, then you are going to adore this Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe. It combines the natural sweetness of ripe strawberries with the tart punch of rhubarb, balanced perfectly by a tender, crumbly crust, and topped with a light, golden meringue that simply melts in your mouth. What makes this recipe even more delightful is how it keeps everything low carb without sacrificing any of the fresh, vibrant flavors or the satisfying textures you crave in a great dessert bar. Whether you’re craving something sweet but want to stay mindful of carbs or just love classic pie flavors reinvented, these bars will quickly become a beloved go-to treat.

Ingredients You’ll Need
This Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe shines because of its simple, yet thoughtfully chosen ingredients. Each one plays a key role in ensuring the bars are deliciously textured, perfectly sweetened, and visually stunning. From the nutty base to the fresh fruit filling and airy meringue, it’s a blend designed for flavor and balance.
- Almond flour: A low-carb, gluten-free flour that gives the crust a slightly nutty flavor and tender texture.
- Coconut flour: Adds absorbency and structure to the crust while keeping it light and moist.
- Granulated erythritol: The perfect sugar substitute that sweetens without the carbs and doesn’t affect blood sugar.
- Salt: Enhances all the flavors and balances the sweetness beautifully.
- Unsalted butter: Gives that rich, buttery base to the crust for a melt-in-your-mouth feel.
- Strawberries: Fresh and juicy, they bring natural sweetness and vibrant color to the filling.
- Rhubarb: The tart powerhouse that pairs wonderfully with strawberries for a classic combo.
- Lemon juice: Adds brightness and depth to the fruit filling while helping it set.
- Eggs: One for the meringue whites and one mixed in to help stabilize the topping.
- Cream of tartar: Essential for stabilizing the egg whites and achieving that perfect stiff peak meringue.
How to Make Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe
Step 1: Prepare and Bake the Crust
Start by preheating your oven to 350°F (175°C). In a mixing bowl, combine the almond flour, coconut flour, erythritol, and salt to create your dry base. Then add the melted unsalted butter and mix gently until crumbs begin to form a cohesive, sandy texture. Press this mixture firmly into a well-greased baking dish to form an even crust. Bake for 10 to 12 minutes until the edges just start to turn a light golden, creating a beautifully nutty and firm foundation that will hold the luscious filling and meringue on top.
Step 2: Cook the Strawberry-Rhubarb Filling
While the crust bakes, it’s time to make the filling that makes this Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe so irresistibly fresh. In a saucepan, combine the chopped strawberries, rhubarb, and a splash of lemon juice. Cook over medium heat, stirring occasionally, until the fruit has softened and melded into a thick, jammy consistency. The citrusy lemon juice helps brighten the natural fruit sugars and kicks the tartness up a notch, giving this filling its signature balanced pop of flavor.
Step 3: Add the Filling to the Crust
Once your crust is out of the oven, immediately pour the warm strawberry-rhubarb filling over the top. Gently spread it into an even layer, making sure every corner is covered so you get a burst of fruity goodness in every bite. This layer sets the stage for the tender meringue topping and ensures your bars will have that perfect harmony of textures.
Step 4: Whip and Spread the Meringue
In a clean bowl, beat the egg whites until soft peaks start to form. Then add the cream of tartar and continue beating until the egg whites hold stiff, glossy peaks. This meringue is what gives this Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe its iconic lightness and delicate crunch. Spread the meringue carefully but generously over the top of the fruit filling, making sure to reach the edges to seal everything in for baking.
Step 5: Bake to Golden Perfection
Pop the entire dish back into the oven and bake for an additional 10 minutes. Watch closely as the meringue puffs up and turns a warm golden color, adding a visually stunning finish and a perfect texture contrast. Once baked, let the bars cool completely before slicing into squares so the layers set nicely, guaranteeing clean slices with that signature pie bar look.
How to Serve Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe

Garnishes
These bars are already as charming as they come, but a few simple garnishes can elevate the experience. Try sprinkling with a light dusting of powdered erythritol for an extra sweet touch, or add a sprig of fresh mint to bring a pop of green and a refreshing aroma. A thin slice of fresh strawberry on top adds a lovely visual that hints at the fruity treasure inside.
Side Dishes
Serve these bars alongside a scoop of low-carb vanilla ice cream or a dollop of unsweetened whipped cream to turn this treat into a celebration-worthy dessert. For an extra cozy touch, a warm cup of herbal tea or freshly brewed coffee pairs wonderfully, balancing the tartness and sweetness with a soothing beverage.
Creative Ways to Present
If you’re bringing these bars to a party or just want to impress at home, try serving them in individual clear mini dessert dishes layered with a spoonful of extra cooked strawberry-rhubarb filling and a delicate dollop of meringue on top. You can also dust with edible rose petals or shimmer powders to add a gourmet flair. No matter how you present them, these bars will be the star of any dessert spread.
Make Ahead and Storage
Storing Leftovers
Once cooled, store any leftover Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe in an airtight container in the refrigerator. They will keep well for up to 3 days, and the flavors often taste even better after a night or two, as the crust absorbs a touch more moisture and the filling firms up nicely.
Freezing
You can freeze these bars for up to a month. To freeze, cut them into individual portions and wrap each bar tightly with plastic wrap and then foil, or place in a freezer-safe container. Thaw in the fridge overnight before serving — this helps preserve the texture better than room temperature thawing.
Reheating
If you want to enjoy your Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe warm, briefly heat individual bars in a low-temperature oven (around 300°F/150°C) for 5-7 minutes. Avoid microwaving if possible, as it can make the meringue tough or rubbery. Warm bars pair beautifully with a scoop of cream or your favorite low-carb ice cream.
FAQs
Are these bars suitable for a keto diet?
Absolutely! This Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe uses almond and coconut flour along with erythritol, making it a fantastic keto-friendly dessert option with a low net carb count.
Can I use frozen strawberries and rhubarb?
Yes, you can! Just make sure to thaw and drain any excess liquid before cooking the filling to prevent it from becoming too watery, which helps maintain the perfect consistency for the bars.
What if I don’t have cream of tartar?
Cream of tartar stabilizes the meringue and helps it whip to stiff peaks. If you don’t have it, you can substitute with a few drops of lemon juice or white vinegar, but the texture may be slightly less stable.
Can I make these bars nut-free?
Since the crust relies on almond flour for its texture and flavor, replacing it would change the recipe significantly. You might experiment with sunflower seed flour or a combination of other low-carb flours, but results will vary.
How do I store the bars if I want to make them ahead for a party?
Prepare and bake the bars as usual, then cool completely, cover tightly, and refrigerate. For the freshest meringue appearance, consider adding a quick fresh meringue topping right before serving and briefly broiling in the oven to refresh the golden finish.
Final Thoughts
If you’re searching for a dessert that feels special but fits your low-carb lifestyle, this Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe is a must-try. Its harmonious blend of tart and sweet, with that irresistible melt-in-your-mouth meringue top, makes it a standout treat that friends and family will ask for again and again. Once you make these bars, you’ll find yourself craving this fresh, light, and utterly satisfying dessert whenever you want to brighten up your day.
Print
Low Carb Strawberry-Rhubarb Meringue Pie Bars Recipe
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Description
A delightful low-carb twist on classic strawberry-rhubarb pie, these meringue pie bars combine a crumbly almond and coconut flour crust with a tangy fruit filling and a fluffy, golden meringue topping. Perfect for those seeking a sweet treat that fits a low-carb lifestyle without sacrificing flavor or texture.
Ingredients
Crust
- 1 cup almond flour
- 1/4 cup coconut flour
- 1/2 cup granulated erythritol
- 1/2 teaspoon salt
- 1/2 cup unsalted butter, melted
Filling
- 2 cups strawberries, chopped
- 2 cups rhubarb, chopped
- 1 tablespoon lemon juice
Meringue Topping
- 2 eggs (separated)
- 1/4 teaspoon cream of tartar
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) to prepare for baking the crust.
- Mix Dry Ingredients: In a bowl, combine almond flour, coconut flour, granulated erythritol, and salt to form the dry base for the crust.
- Add Butter: Pour in melted unsalted butter and mix thoroughly until the mixture becomes crumbly and holds together when pressed.
- Form Crust: Press the crumbly mixture evenly into a greased baking dish to form the pie bars’ base.
- Bake Crust: Bake the crust for 10-12 minutes, or until it turns lightly golden, then remove from oven.
- Cook Fruit Filling: In a saucepan over medium heat, combine chopped strawberries, rhubarb, and lemon juice. Cook until the fruit softens and melds into a juicy filling.
- Assemble Filling: Pour the warm strawberry-rhubarb mixture evenly over the baked crust.
- Prepare Meringue: In a clean bowl, beat the egg whites until soft peaks form. Add cream of tartar and continue beating until stiff peaks are achieved, creating a light and airy meringue.
- Top with Meringue: Spread the meringue gently and evenly over the fruit layer.
- Bake Bars: Return the assembled pie bars to the oven and bake for an additional 10 minutes or until the meringue topping is golden brown.
- Cool and Serve: Let the bars cool completely before slicing into 12 servings for best texture and flavor.
Notes
- Ensure all bowls and beaters used for whipping egg whites are completely clean and free of grease for perfect meringue peaks.
- Use fresh, firm rhubarb and ripe strawberries for the best flavor and texture.
- Allow bars to cool fully to let the filling set and prevent meringue from weeping.
- Store leftovers in the refrigerator in an airtight container for up to 3 days.
- You can substitute erythritol with another granulated low-carb sweetener if preferred.

