As I whisked together the ingredients for this No-Bake Lemon Fluff, I couldn’t help but feel a sense of nostalgia wash over me, reminding me of sun-soaked afternoons spent with family. This dessert captures the bright, tangy essence of lemons while offering a light and fluffy texture that’s utterly irresistible. With only a quick 15-minute prep time, it’s ideal for anyone seeking a hassle-free yet impressive treat. Plus, it’s kid-friendly, making it perfect for gatherings or just a sweet surprise for the little ones after dinner. Are you ready to dive into a creamy, citrus dream that will have everyone reaching for seconds?

Why is Lemon Fluff a Must-Try?
Simplicity: This no-bake dessert requires just 15 minutes of prep time, making it perfect for busy schedules.
Kid-Friendly: The light and creamy texture, combined with the citrus flavor, makes it a hit with kids and adults alike — no one can resist!
Versatility: Try using different flavored pudding mixes or even swap out the shortbread cookies for a chocolate twist to keep things exciting!
Crowd-Pleaser: Whether it’s a family dinner or a potluck, Lemon Fluff will impress and leave guests asking for the recipe.
Fresh Ingredients: Using freshly squeezed lemon juice enhances the flavor like nothing else, giving you that homemade taste similar to my delightful Lemon Blueberry Summery.
Perfect Texture: The airy fluffiness paired with the crunch of cookies creates a delightful experience in every bite.
Lemon Fluff Ingredients
For the Fluff
- 1 (3.4-ounce) box instant lemon pudding mix – This is the star ingredient that brings citrus flavor and creaminess to your Lemon Fluff.
- 1 ¾ cups cold heavy cream, divided – This provides the rich, luscious texture; opt for half-and-half if you prefer a lighter option.
- 3 tablespoons freshly squeezed lemon juice (from 1 medium lemon) – This enhances the lemon flavor beautifully; fresh juice is best, but bottled can work in a pinch.
- 2 tablespoons powdered sugar – Sweetens the fluff; feel free to adjust or omit it for a less sweet dessert.
- ¼ teaspoon kosher salt – This balances out the sweetness perfectly; regular salt can be substituted if needed.
- ½ cup marshmallow crème (such as Marshmallow Fluff) – Adds delightful fluffy sweetness; consider using whipped cream for a healthier twist.
For the Crunch
- 1 ½ cups coarsely crushed shortbread cookies (4 ounces), plus more for garnish – These cookies add the needed texture and flavor; graham crackers or gluten-free cookies can work too.
For Garnish
- Finely grated lemon zest (optional) – Elevates aroma and visual appeal; it’s a simple touch that makes a big difference to your Lemon Fluff!
Bring these ingredients together, and you’ll have an irresistibly light and creamy Lemon Fluff that’s sure to impress!
Step‑by‑Step Instructions for Lemon Fluff
Step 1: Whisk the Base
In a large mixing bowl, combine the instant lemon pudding mix, ¾ cup of cold heavy cream, and freshly squeezed lemon juice. Whisk them together vigorously until well blended, then let the mixture sit for about 5 minutes. This resting period will allow the pudding to thicken, becoming creamy and somewhat stiff—a perfect base for your Lemon Fluff.
Step 2: Beat the Cream
In a stand mixer, pour in the remaining 1 cup of cold heavy cream, along with the powdered sugar and kosher salt. Beat the mixture on medium speed for about 3-4 minutes, until soft peaks form and the cream is light and fluffy. This whipped cream will add a delightful airy texture to your Lemon Fluff, creating a contrast with the pudding mix.
Step 3: Incorporate Marshmallow Crème
Once you have soft peaks, add the marshmallow crème to the whipped cream in the mixer. Continue beating on medium speed for an additional 1-2 minutes, until stiff peaks form. The combination of whipped cream and marshmallow crème creates an irresistibly fluffy texture that enhances the overall creaminess of your Lemon Fluff.
Step 4: Combine Mixtures
Carefully fold the marshmallow crème mixture into the thickened lemon pudding base with a spatula. Gently incorporate it until just combined to maintain the light fluffiness. Be cautious not to overmix; the goal is a smooth, airy Lemon Fluff that retains its delightful texture and flavor.
Step 5: Add the Crunch
Now, fold in 1 ½ cups of coarsely crushed shortbread cookies into the lemon pudding mixture. Use a gentle folding motion until the cookies are evenly distributed without breaking them down too much. This step brings a satisfying crunch to your Lemon Fluff, enhancing both flavor and texture.
Step 6: Serve and Garnish
Spoon the luscious Lemon Fluff into individual serving cups and chill in the refrigerator for at least 30 minutes to set. Before serving, garnish each cup with extra crushed shortbread cookies and a sprinkle of finely grated lemon zest for an aromatic and visually appealing finish. Enjoy your refreshing Lemon Fluff dessert!

What to Serve with No-Bake Lemon Fluff?
Elevate your dessert experience and create a delightful spread that complements the light, tangy goodness of this creamy dessert.
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Fresh Berries: The vibrant sweetness of strawberries or blueberries enhances the citrus notes while adding a refreshing touch.
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Shortbread Cookies: These crunchy delights echo the dessert’s texture, inviting guests to savor the blend of flavors and textures.
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Coconut Whipped Cream: A dollop of coconut cream adds a tropical twist, marrying beautifully with the lemony fluff while providing creaminess.
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Sparkling Lemonade: A fizzy, citrusy drink enhances the overall experience, perfect for a warm gathering or summer brunch.
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Mint Leaves: A sprinkle of fresh mint not only refreshes the palate but adds a pop of color that makes your Lemon Fluff stand out even more.
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Chocolate Drizzle: A light drizzle of chocolate sauce introduces a decadent richness, making an enticing contrast to the lemon flavor.
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Fruit Salad: A bowl of mixed fresh fruits adds a vibrant burst of color and texture, balancing out the sweetness of the Lemon Fluff beautifully.
Add these delightful accompaniments to transform your dining table into a feast of flavors and textures that everyone will love!
Make Ahead Options
These No-Bake Lemon Fluff desserts are perfect for meal prep, allowing you to whip them up in advance for busy weeknights or special occasions! You can prepare the entire mixture up to 24 hours ahead of time. Simply follow the instructions until you combine the marshmallow crème and pudding, then cover tightly and refrigerate. To maintain the light texture, avoid folding in the crushed shortbread cookies until just before serving. When you’re ready to impress, gently fold in the cookies, spoon into serving cups, and garnish with extra cookies and lemon zest. This way, you’ll have a delightful dessert that tastes just as fresh as the moment it was made!
Storage Tips for Lemon Fluff
Refrigerator: Store leftover Lemon Fluff in an airtight container in the fridge for up to 1 day. The cookies may soften, but the creamy texture will still be delightful!
Freezer: Freeze Lemon Fluff for up to 2 months by placing it in a freezer-safe container. Thaw it in the refrigerator overnight before serving, but note that the texture may change slightly.
Serving: For the best experience, serve chilled. If it’s been frozen, gently re-mix before serving to restore some fluffiness.
Preparation: You can prepare the Lemon Fluff up to 2 hours in advance, making it a convenient dessert option for gatherings or family dinners!
Expert Tips for Lemon Fluff
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Chill Your Ingredients: Ensure your heavy cream is cold before whipping; it helps achieve the best volume and texture for the Lemon Fluff.
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Avoid Overmixing: Be careful not to overmix when combining the pudding and marshmallow mixtures; this will help maintain the light and airy texture essential for a successful Lemon Fluff.
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Garnish Wisely: Add your cookie garnish just before serving to keep them crispy and prevent them from becoming soggy in the creamy fluff.
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Customize Sweetness: Adjust the amount of powdered sugar according to your taste; you can reduce it or even omit it for a less sweet version.
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Fresh Juice Matters: Freshly squeezed lemon juice enhances the flavor significantly compared to bottled ones; opt for fresh for the best taste in your Lemon Fluff.
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Experiment with Variations: Don’t hesitate to try different flavored pudding mixes or cookie bases; this Lemon Fluff can easily adapt to new ingredients for fresh twists!
Lemon Fluff Variations & Substitutions
Feel free to explore creative changes to personalize your Lemon Fluff and make it uniquely yours!
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Chocolate Twist: Swap shortbread cookies for chocolate cookies to introduce a decadent flavor contrast. This twist adds a delightful richness that pairs surprisingly well with the lemon.
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Flavor Boost: Use different flavored pudding mixes, such as vanilla or cheesecake, to alter the taste. Each flavor can offer a new twist, perfect for experimenting with seasonal fruit juices!
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Berry Delight: Layer fresh berries like raspberries or strawberries on top for added texture and a burst of color. Not only do they enhance the dessert, but they also bring nourishment as well!
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Dairy-Free: Substitute heavy cream with coconut cream or a blend of almond milk and aquafaba whipped until light. This option retains fluffiness while catering to dietary preferences.
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Low-Carb: To lighten the dish, replace powdered sugar with a sugar substitute like erythritol or stevia. This swap ensures everyone can indulge without the guilt.
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Citrus Medley: Incorporate other citrus juices—such as lime or orange—to create a citrus medley. This exploration transforms the flavor profile into a whole new world of fresh deliciousness!
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Nutty Crunch: Add chopped nuts like almonds or pecans for an extra layer of crunch that enhances texture. It will take your Lemon Fluff to the next level, bringing a delightful surprise in every bite.
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Graham Cracker Base: Consider using graham crackers instead of shortbread cookies for a classic texture twist. This simple change evokes the essence of summertime treats, reminiscent of long, bright days.
Each of these variations invites a new experience while keeping the delightful essence of this refreshing treat. For a close cousin of this light dessert, check out my Lemon Blueberry Summery for a fruitier version everyone will adore!

No-Bake Lemon Fluff Recipe FAQs
How do I select the best lemons for the recipe?
When choosing lemons, look for ones that feel heavy for their size and have a vibrant yellow color. Avoid any lemons with dark spots or a dull appearance, as they may be past their prime. Fresh, juicy lemons will yield the best flavor for your No-Bake Lemon Fluff!
How should I store leftover Lemon Fluff?
Store your leftover Lemon Fluff in an airtight container in the refrigerator for up to 1 day. While it may remain delicious, the shortbread cookies will soften as they sit in the creamy fluff. If you want to add freshness, consider serving it with a sprinkle of new crushed cookies just before enjoyment!
Can I freeze No-Bake Lemon Fluff?
Absolutely! To freeze your Lemon Fluff, transfer it into a freezer-safe container. Make sure to seal it tightly to prevent freezer burn, and it should last for up to 2 months. When you’re ready to enjoy it, thaw it overnight in the refrigerator. Just a gentle remMix will help restore some of that fluffy texture!
What if my heavy cream doesn’t whip properly?
If your heavy cream isn’t whipping up nicely, check to ensure it was cold enough before starting. Cold cream is crucial for proper whipping. If you struggled, try switching to a metal bowl or chilling your mixing equipment beforehand. Whipping for about 3-4 minutes on medium speed should get you those soft peaks; don’t overwhip, as it can turn grainy!
Is this Lemon Fluff safe for kids, and are there any allergens?
Yes, this No-Bake Lemon Fluff is kid-friendly and quite simple. However, it does contain dairy and marshmallow crème, so be cautious if you’re serving it to kids with allergies to dairy or gelatin. You can substitute with lactose-free heavy cream and ensure any alternatives match dietary needs for an enjoyable treat for all ages!

Lemon Fluff: A Light, Dreamy No-Bake Dessert in 15 Minutes
Ingredients
Equipment
Method
- In a large mixing bowl, combine the instant lemon pudding mix, ¾ cup of cold heavy cream, and freshly squeezed lemon juice. Whisk until well blended, then let sit for about 5 minutes.
- In a stand mixer, pour in the remaining 1 cup of cold heavy cream, along with the powdered sugar and kosher salt. Beat on medium speed for about 3-4 minutes until soft peaks form.
- Add the marshmallow crème to the whipped cream in the mixer. Continue beating on medium speed for an additional 1-2 minutes until stiff peaks form.
- Carefully fold the marshmallow crème mixture into the thickened lemon pudding base with a spatula until just combined.
- Fold in the 1 ½ cups of coarsely crushed shortbread cookies until evenly distributed.
- Spoon the Lemon Fluff into individual serving cups and chill in the refrigerator for at least 30 minutes. Garnish before serving.
