Key Lime Pie (Less Sugar, Low Calorie) #SundaySupper

The best Key Lime Pie recipe made without sweetened condensed milk for less sugar content. Egg whites make this key lime pie light and airy.

Pin Key Lime Pie here.
Best Key Lime Pie - light, fluffy - chiffon pie

 Making a lower calorie pie is always a challenge especially a key lime pie. In the first place, a pie needs to be sweet, hence all the sugar and sweetened condensed milk. Second, key lime pie is often topped with whipped cream. As a result, the pie is loaded with saturated fat. With this in mind, I looked to lighten key lime pie.

Fresh key lime juice and egg whites make the best light Key Lime Chiffon Pie - Low Calorie.

I happened to be watching “Dinner at Tiffani’s” and saw her make a grapefruit chiffon pie with egg whites. If she could make a light and airy chiffon pie with grapefruit, then I could do it with Key Limes. Sugar would still have to be reduced, but the basis of the recipe was a sound theory. Egg whites would give me the lift and lightness which whipped cream would normally provide.

Have to make this Key Lime Pie - made without sweetened condensed milk and less sugar

Now the issue would be, taste. Would it taste delicious? Would the egg whites overpower the fresh key lime juice? For this reason, it is important you use fresh key lime juice. You must zest your limes and press out the fresh juice. That is an essential step. Additionally add some fresh lime zest to the top of your Key Lime Pie. The pop of flavor from the zest is spectacular.

The result of this recipe, divine! This is key lime pie destined to be your go-to pie for spring and summer parties and potlucks. The texture is so light. This Key Lime Pie is not overly sweet either, resulting in a more refreshing pie. Key Lime Pie is also a no-bake dessert that can easily be made a day ahead. Enjoy a slice of Key Lime Pie for yourself.

Grab a slice - perfect Key Lime Pie for potlucks, Easter and picnics

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Have to make this Key Lime Pie - made without sweetened condensed milk and less sugar

Key Lime Chiffon Pie

Prep Time 20 minutes
Cook Time 10 minutes
Total Time 30 minutes
Servings 8 servings
Calories 207 kcal
Author Christie Daruwalla


  • 1 reduced fat graham cracker crust
  • ¼ cup water
  • 1 packet unflavored gelatin
  • 4 eggs separated
  • ¾ cup sugar divided
  • ½ cup fresh key lime juice
  • 2 tsp key lime zest
  • ½ tsp kosher salt


  1. Pour water into a small bowl and sprinkle gelatin on top.
  2. Let stand until gelatin softens, about 15 minutes.
  3. Create a double boiler by bringing a small pot of water to boil.
  4. Using a medium heatproof bowl (that will fit on top of the small pot of water), whisk together egg yolks and ½ cup sugar.
  5. Add lime juice, zest and salt.
  6. Place bowl on top of the pot of boiling water.
  7. Cook over medium heat, whisking constantly, until the mixture thickens and reaches 170• on an instant read thermometer, about 5 minutes.
  8. Remove bowl from the heat.
  9. Whisk in gelatin until mixture is smooth.
  10. Strain through a fine mesh sieve into a large bowl.
  11. Set aside to cool for 30 to 40 minutes.
  12. Beat egg whites with an electric mixer or stand mixer on medium-low speed until frothy, a few minutes.
  13. Add remaining ¼ cup sugar and increase speed to medium-high. Beat until egg whites form stiff peaks, about 8 minutes.
  14. Gently fold the egg whites into the lime mixture.
  15. Pour into the pie crust.
  16. Refrigerate for at least 4 hours, or overnight.

Recipe Notes

I calculated 9 Weight Watcher Smart points.

Adapted from Dinner at Tiffanis.

Nutrition Facts
Key Lime Chiffon Pie
Amount Per Serving
Calories 207 Calories from Fat 54
% Daily Value*
Total Fat 6g 9%
Saturated Fat 3g 15%
Total Carbohydrates 34g 11%
Dietary Fiber 1g 4%
Sugars 24g
Protein 5g 10%
* Percent Daily Values are based on a 2000 calorie diet.

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Best Key Lime PIe Ever. Love that it isn't made with sweetened condensed milk. Less sugar, light, fluffy and full of key lime flavor

Food Done Light is on a mission to keep passion for food but find ways to fit it into a healthy life and hopefully, along the way, change eating habits for good. Healthy living one bite at a time is our motto. You will find heart healthy recipes with Weight Watcher points, and most of all the recipes are delicious. Just ask the Food Done Light family which includes my husband, 10-year-old daughter, Lucy, our 8 yr old Golden Retriever, and Stella, our 13-year-old cat. Find Food Done Light on Facebook, Pinterest, Instagram and Twitter.


  1. I love key lime pie and I am so happy to have a lighter version. Bookmarked to make very soon!
  2. Anything key lime is a win in my book! This pie is so pretty & I love that you found a way to lighten it up. I like that you mentioned it's not too sweet tasting. I like sweet eats, but sometimes they can be over the top to the point where I just can't eat them. This beautiful pie needs to get in my belly sooon!
  3. I haven't had key lime pie in years. It's so delicious!! I will definitely be trying your recipe.
  4. I'm always looking for a lighter version of desserts and this sounds and looks amazing.
  5. It might be lighter but it still looks delicious! Who doesn't like key lime pie??
  6. I love how you have lightened this up but keeping the great flavor.
  7. So glad to know that Key Lime Pie can be made deliciously without condensed milk. And grateful egg whites do the trick. Thank you for watching TV and sharing your recipe, Christie =)
  8. I love that you used gelatin .... I have a big canister and am always looking for new ways to use it. Can't wait to try this!
  9. Very creative way to lighten this favorite dessert.
  10. This pie looks divine! I sure I would not miss the condensed milk at all.
  11. More pie, less guilt. That's one of my life mottos, and this recipe aligns perfectly. :) I need this in my life, STAT!
  12. I had actually NEVER had key lime pie until a few years ago but I LOVED it! I definitely need to try making it and I'd love a healthy twist like this one!
  13. Key Lime Pie is a favorite of mine! I love this lighter option! Yum!
  14. I love key lime and saving calories so win win!
  15. The key lime pie looks so creamy and scrumptious. Glad you made it in light version Christy
  16. I tried making this last night. It looked and tasted fine after being in the fridge for 1 hour but after I left it overnight, the egg whites completely deflated even though it was whipped to stiff peaks yesterday. It is now a flat, liquid mess. Any ideas how to fix it?
    • Christie Daruwalla says
      Did you use regular egg whites or cartoon egg whites? This did not happen to any of the pies I made.


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