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Lemon Slice Icing

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This Lemon Slice Icing Recipe is the perfect finishing touch for both cooked and no-bake lemon slice recipes. With its vibrant lemon flavor and lush consistency, it adds a delightful citrusy punch to any slice!

Icing on lemon slice displayed on board.
Lemon Slice Icing on top of Gluten Free Lemon Slice

Lemon Slice Icing Recipe

Preparing this lemon slice icing is a breeze. Just a few simple ingredients whisked together create a smooth, creamy topping that spreads easily over any slice.

Whether you’re dressing up baked dessert bars or adding a tangy lemon finish to a no-bake slice, this icing complements any base.

Best Lemon Slice Recipes

  • Gluten-Free Lemon Slice – Enjoy a zesty, refreshing treat with this gluten-free lemon slice, perfect for a sweet, tangy snack!
  • Lemon Oat Coconut Slice – The delightful combination of lemon, oats, and coconut in this slice offers a perfect balance of tartness and sweetness!
  • Baked Lemon Slice – Indulge in this baked lemon slice, where the flavors intensify in the oven, resulting in a deeply flavorful and satisfying dessert!
Lemon slice icing preparation.

Essential Ingredients

The essential ingredients listed below are affiliate links on Amazon so you can easily find and see the exact products I recommend for creating this lemon slice icing!

Must Have Tools

For making this recipe, it’s essential to have these Amazon affiliate tools at your disposal.

Spreading the lemon slice icing on lemon biscuit base in pan.

Can I use bottled lemon juice instead of fresh?

While fresh lemon juice is recommended for its fresh flavor and lack of preservatives, bottled lemon juice can be used in a pinch. Note that the flavor might not be as vibrant.

Can lemon slice icing be used on any dessert base?

Absolutely! This lemon slice icing is incredibly versatile and can be used on a variety of dessert bases. Its creamy texture and robust flavor make it an excellent choice for any slice base.

Expert Tips

  • Achieve Perfect Consistency: If your icing is too thick to spread, add a little more lemon juice, one teaspoon at a time, until it reaches a smooth, spreadable consistency. Conversely, if it’s too runny, gradually mix in more powdered sugar until thickened.
  • Enhance the Flavor: For an extra zesty kick, include a bit of lemon zest into the icing. This not only boosts the lemon flavor but also adds a fresh, aromatic touch.
  • Smooth Application: Use a warm, dry spatula to spread the icing. Warming the spatula under hot water and drying it off can help achieve a smoother finish without sticking.
Three slices of coconut, oat and lemon slice in a small tower on plate.
Lemon slice icing on top of Lemon Coconut Oat Slice

How to store lemon slice icing

While lemon slice icing is best used fresh, you can manage leftovers or prepare it in advance with these storage guidelines:

Store: If you have leftover icing or need to make it ahead, keep it in an airtight container in the refrigerator for up to 3 days. Before reuse, let it warm to room temperature for about 30 minutes and give it a good stir. If it appears thick or separated, add a little more lemon juice and whisk until it regains a smooth consistency.

Freeze: Freezing is not recommended as it can alter the texture of the icing, causing separation or graininess. If you must freeze, use an airtight container and store for no more than 1 month.

Thaw: Thaw frozen icing in the refrigerator overnight. Stir well after thawing, and add a bit of lemon juice if needed to smooth it out. Use the revived icing promptly for best results.

If you enjoy this recipe, please consider leaving a ⭐️ star rating and a comment review below. I love to hear what you think and it’s much appreciated. Thank you! Your email address will not be published. Sam x

Spreading lemon icing over base.

Lemon Slice Icing

Samantha Pickthall
This Lemon Slice Icing Recipe is ideal for both no-bake and baked slice bases. This icing has a vibrant lemon flavor and lush consistency!
No ratings yet
Prep Time 10 minutes
Chill Time 2 hours
Total Time 2 hours 10 minutes
Course Dessert
Cuisine American
Servings 8 inch slice
Calories 201 kcal

Ingredients
 
 

  • 2 1/2 cups (300g / 10.6 oz.) powdered sugar / icing sugar
  • 60 g unsalted butter, melted
  • 2 Tbsp freshly squeezed lemon juice, about one medium-large lemon

Instructions
 

  • Prepare Base: Ensure your slice base (whether cooked or no-bake) is ready and set before you begin making the icing to prevent it from hardening too quickly.
  • Sift Sugar: In a medium-sized mixing bowl, sift the powdered sugar to remove any lumps.
  • Combine Ingredients: Pour in the melted butter and lemon juice. Whisk the mixture until well combined and smooth; the texture should be thick.
  • Spread Icing: Spread the icing over your prepared slice base immediately to ensure it smooths out easily. Use a spatula or the back of a spoon for an even layer.
  • Chill and Set: Allow the iced slice to set in the refrigerator for about 1-2 hours.
  • Serve: Once set, cut into desired pieces and serve. Enjoy!

Notes

  • Store: If you have leftover icing or need to make it ahead, keep it in an airtight container in the refrigerator for up to 3 days. Before reuse, let it warm to room temperature for about 30 minutes and give it a good stir. If it appears thick or separated, add a little more lemon juice and whisk until it regains a smooth consistency.
 
  • Freeze: Freezing is not recommended as it can alter the texture of the icing, causing separation or graininess. If you must freeze, use an airtight container and store for no more than 1 month.
 
  • Thaw: Thaw frozen icing in the refrigerator overnight. Stir well after thawing, and add a bit of lemon juice if needed to smooth it out. Use the revived icing promptly for best results.

Nutrition

Calories: 201kcalCarbohydrates: 38gProtein: 0.1gFat: 6gSaturated Fat: 4gPolyunsaturated Fat: 0.2gMonounsaturated Fat: 2gTrans Fat: 0.2gCholesterol: 16mgSodium: 2mgPotassium: 8mgFiber: 0.1gSugar: 37gVitamin A: 188IUVitamin C: 2mgCalcium: 3mgIron: 0.05mg
Tried this recipe? Let us know how it was!
Lemon icing pin.

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