Sugar-Free Low Carb Banana Cream Pie Recipe

This sugar-free low-carb banana cream pie delivers classic banana cream pie flavor without fresh bananas or added sugar. It uses banana extract for a fragrant fruit taste, a buttery almond-flour crust, a gelatin-set custard, and softly sweetened whipped cream for a dessert with about 8 servings.

The pie takes about 25–30 minutes to prepare and 10–15 minutes to cook, but plan on at least 4 hours of chilling, preferably overnight. Every bite is creamy, lightly vanilla-scented, and pleasantly rich, with a tender nutty crust that makes this a wonderful choice for a low-carb dessert table.

Why You’ll Love This Recipe

This pie has the familiar comfort of banana cream pie while keeping the ingredient list friendly to a sugar-free, low-carb menu. Banana extract supplies the signature fruit aroma without relying on fresh banana slices, which contain considerably more natural sugar and carbohydrate.

The filling is lightened with whipped cream after the custard cools, giving it a spoonable, mousse-like texture. A small amount of gelatin helps the pie hold its shape when sliced, while the almond-flour crust contributes buttery flavor and a gentle toasted nuttiness.

If you enjoy nostalgic banana desserts for special occasions, you may also like these banana buttermilk pancakes for a weekend breakfast. This pie, however, is designed specifically for a chilled dessert course.

Ingredients You’ll Need

Gather the crust ingredients first: finely ground almond flour, powdered erythritol or another powdered keto sweetener, melted unsalted butter, salt, and vanilla extract. Finely ground almond flour gives the crust a more cohesive texture than a coarse meal and helps it press neatly into the pie plate.

For the custard, you will need unsweetened almond milk, 1 1/2 cups of heavy whipping cream divided between the custard and folded-in cream, powdered erythritol or allulose, three large egg yolks, unflavored gelatin, banana extract, vanilla extract, and salt. Xanthan gum is optional, but the small amount can provide a slightly firmer filling.

The topping is simple: cold heavy whipping cream, powdered erythritol or allulose, and vanilla extract. Keep the cream cold until whipping time so it reaches firm peaks efficiently and stays airy over the chilled pie.

• Use powdered sweetener rather than granulated erythritol for a smoother custard.
• Choose banana extract from a trusted brand and add more only after tasting the cooled filling.
• Have a 9-inch pie plate ready before mixing the crust.
• Plan ahead because the pie needs at least 4 hours in the refrigerator.

Fresh banana is intentionally absent here. A small amount of thinly sliced banana can be added if desired, but it will increase the carbohydrate count and may introduce extra moisture into the filling.

How to Make It Step-by-Step

Step 1: Heat your oven to 350°F (175°C). Combine the almond flour, powdered sweetener, salt, melted butter, and 1/2 teaspoon vanilla in a bowl, stirring until the mixture resembles moist crumbs and no dry pockets remain.

Step 2: Press the crust mixture firmly across the bottom and slightly up the sides of a 9-inch pie plate. Use the flat bottom of a measuring cup to compact it, paying special attention to the edges so the crust does not crumble when sliced.

Step 3: Bake the crust for approximately 10–12 minutes, watching for a light golden color. Remove it from the oven and let it cool completely; adding custard to a warm crust can soften the base and interfere with clean slices.

Step 4: In a saucepan, whisk together the egg yolks, 1/3 cup powdered sweetener or allulose, almond milk, 1/8 teaspoon salt, and optional xanthan gum. Before placing the pan over the heat, whisk a little of the warm milk mixture into the yolks if you are working with a separately warmed mixture; this tempering step reduces the chance of scrambled eggs.

Step 5: Cook the custard over medium-low heat, stirring constantly with a whisk or silicone spatula. Continue until it thickens enough to coat a spoon, but do not allow it to boil because high heat can curdle the yolks.

Step 6: Remove the saucepan from the heat and sprinkle in the 2 tablespoons of unflavored gelatin. Whisk thoroughly until every bit of gelatin has dissolved and the custard looks smooth.

Step 7: Stir in 1/2 cup of the heavy cream, 1 teaspoon banana extract, and 1 teaspoon vanilla extract. Let the custard cool until lukewarm before folding in whipped cream; adding whipped cream to hot custard can deflate it and create a loose filling.

Step 8: Whip the remaining 1 cup of heavy cream to soft peaks. Gently fold it into the lukewarm custard in two or three additions, using a broad spatula and slow strokes to preserve as much air as possible.

Step 9: Pour the finished filling into the completely cooled almond-flour crust and smooth the top. Refrigerate for at least 4 hours, preferably overnight, so the gelatin can set the pie firmly enough for neat portions.

Step 10: Shortly before serving, whip the topping cream, 2 tablespoons powdered sweetener or allulose, and 1/2 teaspoon vanilla to firm peaks. Spread or pipe it over the cold pie, then cut with a sharp knife for the cleanest presentation.

Pro Tips for a Creamy, Firm Pie

Tempering deserves special attention because it protects the egg yolks from sudden heat. Even when the milk mixture is only warm, slowly introducing it to the yolks creates a gentler transition before the ingredients return to the saucepan.

Keep the custard below a boil while it cooks. Stir constantly, especially around the bottom and corners of the pan, and remove it as soon as it coats a spoon; overcooking can produce a grainy texture.

Add banana extract after removing the custard from the heat. Its flavor can become dull with extended cooking, so taste the mixture after it has cooled slightly and adjust only if needed.

Sweetener choice affects the final texture. Powdered erythritol dissolves more smoothly than granulated erythritol, while allulose creates a softer, less cooling sensation but may leave the filling slightly less firm.

For another fruit-forward treat, compare the texture and flavor profile with this pineapple banana dessert. It is not a low-carb match for this pie, but it can inspire a fresh dessert spread when dietary restrictions are not the focus.

Chilling, Slicing, and Serving

Refrigeration is not a minor final step; it is what allows the gelatin-based filling to become sliceable. Give the pie at least 4 hours, and choose an overnight chill when preparing it for guests or a holiday meal.

For tidy slices, dip a sharp knife in hot water, dry it, and make one confident cut. Wipe the blade between portions, then repeat the warm-water method as needed.

Serve the pie cold with its whipped topping freshly piped or spread over the surface. The contrast between the cool custard, airy cream, and lightly crisp almond crust makes each bite rich without needing a heavy sauce.

Keep leftovers covered in the refrigerator. For the best texture, enjoy them within a few days, and do not freeze the completed pie unless you are prepared for the whipped cream and custard texture to change after thawing.

Ways to Plan a Dessert Table

This pie works well as the centerpiece of a dessert table because it can be made the day before. Its banana aroma is recognizable even without fresh fruit, making it a useful option when you want classic flavor in a lower-carbohydrate format.

Balance the creamy pie with a crisp cookie or a small baked treat. Our butter cookie recipe offers a different texture, while a fruit-filled option such as this honey banana snack cake can suit guests who are not following a sugar-free plan.

For a savory gathering before dessert, you can also serve a warm low-carb pepperoni pizza dip. Then finish with small slices of pie so the rich cream and custard feel like a satisfying final course rather than an overly large serving.

Sugar-Free Low Carb Banana Cream Pie

A creamy banana-flavored pie made with banana extract, almond flour, powdered keto sweetener, and whipped cream. The gelatin-based custard sets beautifully after several hours of chilling.

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 15 minutes mins

Total Time 4 minutes mins

Servings: 8 servings

Ingredients Method Notes

Ingredients

  

Almond-Flour Crust

• 1 1/2 cups Finely ground almond flour
• 1/4 cup Powdered erythritol or another powdered keto sweetener
• 1/4 cup Unsalted butter, melted
• 1/4 teaspoon Salt
• 1/2 teaspoon Vanilla extract

Banana Custard Filling

• 1 cup Unsweetened almond milk
• 1 1/2 cups Heavy whipping cream, divided
• 1/3 cup Powdered erythritol or allulose
• 3 Large egg yolks
• 2 tablespoons Unflavored gelatin
• 1 teaspoon Banana extract
• 1 teaspoon Vanilla extract
• 1/8 teaspoon Salt
• 1/8 teaspoon Xanthan gum, optional

Whipped Topping

• 1 cup Cold heavy whipping cream
• 2 tablespoons Powdered erythritol or allulose
• 1/2 teaspoon Vanilla extract

Method

 

Step-by-Step

1. Heat the oven to 350°F (175°C). Mix almond flour, powdered sweetener, salt, melted butter, and vanilla, then press the mixture firmly into the bottom and slightly up the sides of a 9-inch pie plate.
2. Bake the crust for approximately 10–12 minutes, or until lightly golden. Cool it completely before adding the filling.
3. Whisk the egg yolks, sweetener, almond milk, salt, and optional xanthan gum in a saucepan. Temper the yolks by whisking a little of the warm milk mixture into them before returning everything to the pan.
4. Cook over medium-low heat, stirring constantly, until the custard thickens enough to coat a spoon. Do not let it boil.
5. Remove the saucepan from the heat, sprinkle in the gelatin, and whisk until it dissolves completely. Stir in 1/2 cup of the heavy cream, banana extract, and vanilla.
6. Let the custard cool until lukewarm. Whip the remaining 1 cup heavy cream to soft peaks, then gently fold it into the cooled custard.
7. Pour the filling into the cooled crust and refrigerate for at least 4 hours, preferably overnight, until fully set. Whip the topping ingredients to firm peaks and spread or pipe them over the pie before serving.

Notes

Fresh banana is omitted from the strict low-carb version because it adds sugar and carbohydrates. Powdered sweetener dissolves more smoothly, while allulose gives a softer texture but may produce a slightly less firm filling.

Final Thoughts

This sugar-free low-carb banana cream pie proves that you can enjoy a classic dessert profile without adding fresh bananas or granulated sugar. Banana extract, vanilla, rich cream, and a buttery almond crust work together to create a cool, creamy pie with plenty of familiar comfort.

Prepare the crust and custard with patience, temper the yolks carefully, avoid boiling the filling, and allow the pie to chill completely before slicing. With those details in place, you will have an inviting 9-inch dessert that is easy to prepare ahead and especially welcome at celebrations.

For the most polished result, pipe the whipped topping just before serving and offer thin, neatly chilled slices. Store any remaining pie covered in the refrigerator and enjoy the leftovers while the crust and cream are at their freshest.