Low Carb Key Lime Cheesecake Fluff: The No-Bake, Creamy Dessert You’ll Make All Summer

Low-Carb Key Lime Cheesecake Fluff

A no-bake, flour-free, pillowy cloud of tangy lime cheesecake that’s light, creamy, and ready to chill. The perfect keto-friendly dessert for warm days and easy entertaining.

Prep Time:
15 minutes

Chill Time:
1–2 hours

Total Time:
1 hour 15 minutes

Servings:
4–6

Ingredients

  • 8 oz cream cheese, softened
  • 1 cup heavy whipping cream, cold
  • ½ cup plain Greek yogurt or sour cream
  • 3–4 tablespoons powdered keto sweetener (such as Swerve Confectioners or monk fruit powdered)
  • 2 tablespoons fresh lime juice
  • 1 teaspoon lime zest
  • 1 teaspoon vanilla extract
  • A few drops green food coloring (optional)
  • Crushed low-carb cookies or chopped nuts for topping (optional)
  • Lime slices and extra zest for garnish

Instructions

  1. Beat the cream cheese. In a large bowl, beat the softened cream cheese with a hand mixer until completely smooth and creamy.
  2. Add the tangy base. Mix in the yogurt (or sour cream), powdered sweetener, lime juice, lime zest, and vanilla. Beat until uniform. Add a tiny drop of green food coloring if desired and blend.
  3. Whip the cream. In a separate bowl, whip the cold heavy cream until stiff peaks form.
  4. Fold gently. Stir one-third of the whipped cream into the cheesecake mixture to lighten it. Gently fold in the remaining whipped cream until no white streaks remain, taking care not to deflate.
  5. Spoon and top. Divide the fluff into serving glasses or a dish. If using a crunchy topping, layer it on the bottom or sprinkle on top now.
  6. Chill. Cover and refrigerate for at least 1–2 hours (overnight is best). Garnish with lime slices and extra zest before serving.

Notes

  • For the smoothest texture, always use powdered sweetener; granulated will leave a gritty feel.
  • Add more lime zest rather than extra juice for a stronger lime punch without thinning the fluff.
  • For a crunchy topping, crush a few keto vanilla wafers, toast chopped pecans, or make a quick almond flour crumble.
  • Store covered in the fridge for up to 4 days. Freeze for a scoopable frozen dessert.

This Low-Carb Key Lime Cheesecake Fluff is the dessert you turn to when you want something that feels utterly decadent but keeps your wellness goals intact. It’s sunshine in a bowl, a spoonful of creamy, citrusy joy that proves low-carb living is anything but boring. Whip up a batch this week, scoop it into pretty glasses, and watch it disappear—no one will ever guess it took you just 15 minutes and zero baking. Keep this recipe close; it’s the kind of effortless showstopper that turns ordinary evenings into something special.