Sweet Strawberry Lemonade Bars

Here are my strawberry lemonade bars, with a sweet and tangy lemon base, a hint of strawberry powder mixed right in, and a smooth vanilla frosting on top.

These bars are my go-to dessert when I want something that tastes like summer but comes together easily. The dried strawberries give them a fun twist on classic lemon bars, and that frosting? It’s the perfect finish.

What Kind of Strawberries Should I Use?

For this recipe, you’ll want to stick with freeze-dried strawberries rather than fresh or frozen ones. Freeze-dried strawberries have had all their moisture removed, which means they won’t make your bars soggy and they pack an intense strawberry flavor into every bite. You can usually find them in the dried fruit section of your grocery store, or sometimes near the cereal aisle. Once you crush them up, they’ll add both flavor and a pretty pink color to your bars without affecting the texture of the recipe.

Options for Substitutions

These bars are pretty forgiving when it comes to swaps, so here are some options if you need them:

• Freeze-dried strawberries: This is the key ingredient that gives these bars their strawberry flavor, so I wouldn’t skip it. You can find freeze-dried strawberries in the snack aisle or baking section of most grocery stores. Fresh or frozen strawberries won’t work here since they have too much moisture.
• Lemon juice and zest: If you don’t have fresh lemons, bottled lemon juice works fine. You’ll lose the zest though, which adds nice flavor – but the bars will still taste good without it.
• Unsalted butter: You can use salted butter if that’s what you have on hand. Just reduce or omit the added salt in the recipe to avoid making the bars too salty.
• All-purpose flour: Regular all-purpose flour from any brand works just fine here. No need to hunt down a specific brand.
• Confectioners’ sugar: For the frosting, you really need powdered sugar – granulated sugar won’t give you the right texture. If yours is lumpy, just press it through a fine-mesh strainer.
• Milk: Any milk works here – whole, 2%, or even a splash of cream. You can also use a non-dairy milk if needed.

Watch Out for These Mistakes While Baking

The biggest mistake when making lemon bars is overbaking, which leads to dry, crumbly bars instead of the soft, chewy texture you want – pull them from the oven when the edges are just set but the center still has a slight jiggle.

Don’t skip lining your pan with parchment paper that hangs over the edges, as this makes removing the bars so much easier and prevents them from sticking or breaking apart when you try to cut them.

When crushing the freeze-dried strawberries, make sure to grind them into a fine powder using a food processor or sealed bag with a rolling pin, because larger pieces won’t blend smoothly into the frosting and can create a grainy texture.

Finally, let the bars cool completely before frosting – if they’re even slightly warm, the butter-based frosting will melt and slide right off, leaving you with a messy dessert.

What to Serve With Strawberry Lemonade Bars?

These bars are pretty sweet and tangy on their own, so they pair really well with a cold glass of iced tea or fresh lemonade to keep the citrus theme going. I love serving them at summer picnics alongside fresh berries and whipped cream, or even with a scoop of vanilla ice cream if you want to make them extra special. They’re also great as part of a dessert spread with other light treats like sugar cookies or fruit salad. If you’re hosting a brunch, these bars work perfectly with coffee or mimosas for a refreshing end to the meal.

Storage Instructions

Store: Keep your strawberry lemonade bars in an airtight container at room temperature for up to 2 days, or in the fridge for up to 5 days. The frosting stays nice and creamy when chilled, and honestly, I think they taste even better cold on a hot day!

Freeze: These bars freeze really well for up to 3 months. I like to cut them into individual portions, wrap each one in plastic wrap, then store them all together in a freezer bag. That way you can grab just one or two whenever a craving hits.

Serve: If you’ve frozen the bars, just thaw them in the fridge overnight or let them sit at room temperature for about 30 minutes. They’re delicious straight from the fridge too, especially in the summer when you want something cool and refreshing.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 2850-3050
• Protein: 23-27 g
• Fat: 130-140 g
• Carbohydrates: 390-410 g

Ingredients

For the bars:

• 1 1/3 cups sugar
• 3 lemons zest (freshly zested into the sugar to release natural oils)
• 1 tsp salt
• 1 tsp vanilla
• 14 tbsp butter (I like Kerrygold unsalted butter for this)
• 3 tbsp lemon juice
• 2 eggs (room temperature, about 70°F)
• 1 1/2 cups flour (I always use King Arthur all-purpose flour)
• 1/2 tsp baking powder

For the frosting:

• 1 cup dried strawberries (finely ground into a powder before mixing)
• 1/8 tsp salt
• 1/4 cup unsalted butter, softened
• 1 cup powdered sugar (sifted to remove lumps)
• 1 tsp vanilla
• 2 tsp milk
• 1/2 tsp lemon juice

Step 1: Prepare Mise en Place and Preheat

• 1 cup dried strawberries

Preheat your oven to 350°F and prepare an 8×8 inch baking pan by lining it with parchment paper and lightly greasing it.

While the oven heats, finely grind the dried strawberries into a powder using a food processor or blender—this takes just a minute and ensures even distribution throughout the frosting.

Measure out all remaining ingredients and have them ready, ensuring your eggs and butter are at room temperature for proper emulsification.

Step 2: Build the Lemon-Sugar Base

• 1 1/3 cups sugar
• 3 lemons
• 1 tsp salt
• 1 tsp vanilla
• 14 tbsp butter
• 3 tbsp lemon juice

Combine the sugar, freshly zested lemon zest, and salt in a mixing bowl, pressing gently with a spoon to release the essential oils from the zest—this creates an incredibly fragrant base.

Add the vanilla extract and stir to combine.

Melt the butter together with the lemon juice in a small saucepan over low heat, then pour the warm mixture over the sugar mixture.

I like to use Kerrygold butter here because its richness really shines through in these bars.

Stir for about 30 seconds until the sugar begins to dissolve and the mixture becomes glossy.

Step 3: Create the Bar Batter

• 2 eggs
• 1 1/2 cups flour
• 1/2 tsp baking powder
• 1/8 tsp salt

Add the room-temperature eggs to the sugar-butter mixture and stir until fully incorporated, about 1 minute—the mixture should look pale and slightly fluffy as the eggs emulsify with the butter.

In a separate bowl, whisk together the flour, baking powder, and the remaining salt (from the frosting ingredient list, as it’s a small amount that won’t hurt the bars).

Gently fold the dry mixture into the wet ingredients until just combined, being careful not to overmix.

The batter should be smooth but not dense.

Step 4: Bake the Bars

• batter from Step 3

Spread the batter evenly into your prepared baking pan, smoothing the top with an offset spatula or the back of a spoon.

Bake for 28-32 minutes, until a toothpick inserted into the center comes out clean or with just a few moist crumbs.

The edges should be lightly golden but the center should still be slightly soft—these bars will continue to cook slightly as they cool.

Remove from the oven and let cool completely in the pan for at least 1 hour before frosting.

Step 5: Prepare the Strawberry-Lemon Frosting

• 1 cup dried strawberries
• 1/4 cup unsalted butter, softened
• 1 cup powdered sugar
• 1 tsp vanilla
• 2 tsp milk
• 1/2 tsp lemon juice

In a bowl, combine the softened butter with the finely ground strawberry powder from Step 1 and beat together until the mixture is evenly colored and smooth.

Sift in the powdered sugar to remove any lumps, then add the vanilla extract and milk, one teaspoon at a time, beating until the frosting becomes light and fluffy—about 2-3 minutes total.

The frosting should have a spreadable consistency; if it’s too thick, add a few more drops of milk.

Finish by stirring in the lemon juice, which brightens the frosting and ties it back to the lemon bars.

Step 6: Frost and Serve

• frosting from Step 5
• baked bars from Step 4

Once the cooled bars from Step 4 are completely cool, spread or pipe the frosting evenly over the top.

I find that using an offset spatula gives the most professional-looking finish and keeps the frosting layer even.

Cut into squares and serve immediately, or let the frosting set slightly at room temperature for about 15 minutes before serving for cleaner edges.

Sweet Strawberry Lemonade Bars

Delicious Sweet Strawberry Lemonade Bars recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 55 minutes mins

Cook Time 1 hour hr 50 minutes mins

Total Time 2 hours hrs 45 minutes mins

Servings: 12 slices

Calories: 2950

Ingredients Method

Ingredients

  

For the bars

• 1 1/3 cups sugar
• 3 lemons zest (freshly zested into the sugar to release natural oils)
• 1 tsp salt
• 1 tsp vanilla
• 14 tbsp butter (I like Kerrygold unsalted butter for this)
• 3 tbsp lemon juice
• 2 eggs (room temperature, about 70°F)
• 1 1/2 cups flour (I always use King Arthur all-purpose flour)
• 1/2 tsp baking powder

For the frosting

• 1 cup dried strawberries (finely ground into a powder before mixing)
• 1/8 tsp salt
• 1/4 cup unsalted butter, softened
• 1 cup powdered sugar (sifted to remove lumps)
• 1 tsp vanilla
• 2 tsp milk
• 1/2 tsp lemon juice

Method

 

1. Preheat your oven to 350°F and prepare an 8x8 inch baking pan by lining it with parchment paper and lightly greasing it. While the oven heats, finely grind the dried strawberries into a powder using a food processor or blender—this takes just a minute and ensures even distribution throughout the frosting. Measure out all remaining ingredients and have them ready, ensuring your eggs and butter are at room temperature for proper emulsification.
2. Combine the sugar, freshly zested lemon zest, and salt in a mixing bowl, pressing gently with a spoon to release the essential oils from the zest—this creates an incredibly fragrant base. Add the vanilla extract and stir to combine. Melt the butter together with the lemon juice in a small saucepan over low heat, then pour the warm mixture over the sugar mixture. I like to use Kerrygold butter here because its richness really shines through in these bars. Stir for about 30 seconds until the sugar begins to dissolve and the mixture becomes glossy.
3. Add the room-temperature eggs to the sugar-butter mixture and stir until fully incorporated, about 1 minute—the mixture should look pale and slightly fluffy as the eggs emulsify with the butter. In a separate bowl, whisk together the flour, baking powder, and the remaining salt (from the frosting ingredient list, as it's a small amount that won't hurt the bars). Gently fold the dry mixture into the wet ingredients until just combined, being careful not to overmix. The batter should be smooth but not dense.
4. Spread the batter evenly into your prepared baking pan, smoothing the top with an offset spatula or the back of a spoon. Bake for 28-32 minutes, until a toothpick inserted into the center comes out clean or with just a few moist crumbs. The edges should be lightly golden but the center should still be slightly soft—these bars will continue to cook slightly as they cool. Remove from the oven and let cool completely in the pan for at least 1 hour before frosting.
5. In a bowl, combine the softened butter with the finely ground strawberry powder from Step 1 and beat together until the mixture is evenly colored and smooth. Sift in the powdered sugar to remove any lumps, then add the vanilla extract and milk, one teaspoon at a time, beating until the frosting becomes light and fluffy—about 2-3 minutes total. The frosting should have a spreadable consistency; if it's too thick, add a few more drops of milk. Finish by stirring in the lemon juice, which brightens the frosting and ties it back to the lemon bars.
6. Once the cooled bars from Step 4 are completely cool, spread or pipe the frosting evenly over the top. I find that using an offset spatula gives the most professional-looking finish and keeps the frosting layer even. Cut into squares and serve immediately, or let the frosting set slightly at room temperature for about 15 minutes before serving for cleaner edges.