Keto No-Bake Key Lime Bars

A refreshing, low-carb dessert perfect for summer picnics.

Ingredients

For the Crust

2 cups superfine blanched almond flour
1/3 cup butter, melted
3 tbsp Allulose
1 tsp vanilla extract
Pinch of salt

For the Filling

8 oz cream cheese, softened
1/2 cup sour cream (or heavy cream)
1/2 cup powdered Allulose
1/2 cup Key lime juice
1 tbsp lime zest
1/2 tsp unflavored gelatin powder (dissolved in 2 tbsp warm water)

Instructions

The Base: Line an 8×8-inch pan with parchment paper. Mix all crust ingredients until a dough forms. Press firmly into the pan and chill in the freezer.
The Bloom: Sprinkle gelatin over 2 tablespoons of warm water. Let sit for 5 minutes, then microwave for 10 seconds until clear. Cool slightly.
The Filling: Beat cream cheese and sweetener until fluffy. Blend in sour cream, lime juice, and lime zest.
Combine & Set: Stream the liquid gelatin into the mixture while stirring. Pour over the crust, smooth the top, and refrigerate for at least 4 hours.

Nutrition Facts (Per Serving)

Calories	165
Total Fat	16g
Net Carbs	2g
Protein	3.5g

Frequently Asked Questions

Q: Why do I need to use gelatin in this recipe?

A: Traditional key lime pies rely on the chemical reaction between egg yolks (or condensed milk) and lime juice to thicken. Because this is a no-bake, sugar-free recipe, a tiny touch of unflavored gelatin is necessary to ensure the bars set firmly enough to slice cleanly and hold up perfectly during travel.

Q: Can I substitute Allulose with Erythritol or Monk Fruit?

A: Yes. However, Allulose is highly recommended for the filling because it dissolves completely without leaving a gritty texture and doesn't crystallize when chilled. If you use an Erythritol or monk fruit blend, ensure it is in a finely powdered form to keep the filling silky smooth.

Q: How should I store these bars for a picnic?

A: Slice the bars into squares while they are completely cold, then layer them in an airtight container with sheets of parchment paper in between to prevent sticking. Keep the container nestled right next to the ice packs in your cooler until the moment you want to serve them.