Raspberry Lemon Bars are soft, chewy lemon dessert bars topped with a flavorful raspberry frosting. The bars are made with lemon zest, fresh lemon juice, melted butter, granulated sugar, light brown sugar, egg, egg yolk, and vanilla. The frosting gets its berry flavor from freeze dried raspberry powder and raspberry jam, giving the finished bars a pretty color and a real raspberry taste.
These Raspberry Lemon Bars take 45 minutes total, with 20 minutes of prep time and 25 minutes of cook time. The recipe serves 12 and is baked in an 8×8 baking pan. The texture is described as moist and chewy, similar to a blondie, rather than a classic lemon bar with a loose custard layer. That makes them easier to slice once cooled and frosted.
This dessert is a good fit for spring gatherings, summer parties, showers, birthdays, or anytime you want a lemon dessert with a berry finish. The optional garnish of fresh raspberries and sliced lemon makes the bars look polished, but the recipe is still strong without garnish. For another berry dessert idea, these creamy no-bake cheesecake with berries would fit the same dessert table.
These raspberry lemon bars are:
These Raspberry Lemon Bars are bright from lemon zest and lemon juice, soft and chewy from the melted butter and sugars, and sweet-tart from the raspberry frosting. They are a good choice when you want something more interesting than plain lemon bars but still want a familiar dessert that slices neatly.
The frosting is generous. The recipe card notes that the frosting layer is equal thickness to the lemon bar layer. If you prefer less frosting, the note says to halve the frosting portion of the recipe. That is helpful because some people love a thick frosting layer, while others want more lemon bar than topping.
The freeze dried raspberry powder is also a key part of the recipe. The note explains that freeze dried raspberries are dry and crispy, not soft and chewy like raisins. Because they are dry, they add deep raspberry flavor without adding too much moisture to the frosting.
Ingredients
The bar layer uses pantry-friendly baking ingredients plus fresh lemon. Flour, baking powder, and salt form the dry mixture. Melted butter, granulated sugar, light brown sugar, lemon zest, lemon juice, egg, egg yolk, and vanilla form the wet mixture.
The frosting uses softened butter, powdered sugar, freeze dried raspberry powder, vanilla extract, raspberry jam, and milk. The milk is added in small amounts until the frosting is thin enough to spread.
You will need:
Bars:
1 cup all purpose flour, spooned and leveled
½ teaspoon baking powder
¼ teaspoon salt
½ cup unsalted butter, melted and cooled slightly
⅓ cup granulated sugar
¼ cup light brown sugar, packed
finely grated zest of two medium-sized lemons
2 tablespoons freshly squeezed lemon juice
1 large egg
1 large egg yolk
1 teaspoon pure vanilla extract
Frosting:
½ cup unsalted butter, softened
1½ cups powdered sugar
¼ cup freeze dried raspberry powder, see note
½ teaspoon pure vanilla extract
1 tablespoon raspberry jam
2 teaspoons milk, plus more, if needed
Optional garnishes:
fresh raspberries and/or sliced lemon
Equipment you will need
For Raspberry Lemon Bars, you will need an 8×8 baking pan, foil or parchment, a wire rack, a mixing bowl, a second bowl, a whisk, a silicone spatula or wooden spoon, and a hand mixer or stand mixer fitted with the paddle attachment. A food processor or blender is also needed to turn freeze dried raspberries into powder, based on the recipe card note.
If you want to remove raspberry seeds from the powder, the note says you can put the powder through a fine mesh sieve. That step is optional, but it can make the frosting smoother.
Baking Raspberry Lemon Bars with Real Raspberry Frosting
Preheat the oven to 350°F with the rack in the middle of the oven. Line an 8×8 baking pan with foil or parchment and lightly grease it. Set it aside.
Combine the flour, baking powder, and salt in one bowl. In a separate bowl, whisk the melted butter, granulated sugar, and brown sugar for one full minute. Add the lemon zest, lemon juice, whole egg, egg yolk, and vanilla, whisking until well combined.
Tap the whisk on the side of the bowl to remove the excess batter, then remove the whisk. Add the flour mixture and stir with a silicone spatula or wooden spoon until well combined.
Pour the batter into the prepared pan and spread it into an even layer. Bake for 17 to 20 minutes, until the top is dry and a toothpick inserted into the center comes out clean. The bars should still be pale. Place the pan on a wire rack to cool completely.
For the frosting, use a hand mixer or stand mixer fitted with the paddle attachment to beat the butter until smooth. Add the powdered sugar, raspberry powder, vanilla extract, and raspberry jam. Beat until fully combined. Add milk, one teaspoon at a time, until the frosting is thin enough to spread. Spread the frosting onto the cooled bars.
Working with freeze dried raspberry powder
The recipe card gives helpful guidance for the raspberry powder. Freeze dried raspberries are dry and crisp, which makes them suitable for grinding into powder. They are not the same as soft dried fruit. Penn State Extension shares more background on freeze-drying fruits and vegetables, including how the process concentrates flavor.
Pulse the freeze dried raspberries in a food processor or blender until they become a fine powder. If desired, pass the powder through a fine mesh sieve to remove seeds. The recipe note says you will need about ½ cup of freeze dried raspberries for ¼ cup of powder.
This ingredient is important because it adds strong raspberry flavor without adding too much liquid. Fresh berries would bring moisture, which could loosen the frosting. The powder keeps the frosting thick enough to spread while still giving it berry flavor.
Tips for clean slices
Cool the bars completely before frosting. Warm bars can soften the frosting and make it harder to spread neatly. Cooling also helps the bar layer firm up before slicing.
Use the parchment or foil lining to help lift the cooled bars from the pan if needed. Once frosted, use a sharp knife to cut the bars into servings.
If the frosting is very soft, refrigerating the bars briefly can help the topping firm before slicing. The recipe card says to store the bars in the refrigerator, tightly covered, for up to 3 days and serve at cool room temperature.
Serving and storage
Store Raspberry Lemon Bars in the refrigerator, tightly covered, for up to 3 days. Serve them at cool room temperature. This lets the frosting soften slightly while keeping the bars neat.
Optional garnishes include fresh raspberries and sliced lemon. Add garnish closer to serving time for the freshest look. The bars are already flavorful without garnish, but the extra fruit and lemon slices can make them look special for guests.
Because the frosting layer is generous, keep the bars in a flat container if possible. Stacking them may disturb the frosting unless they are well chilled and separated with parchment.
Flavor notes and variations
Raspberry Lemon Bars have a sweet-tart profile. The lemon zest gives the bar layer its strongest lemon aroma, while the lemon juice adds brightness. The raspberry frosting brings sweetness, berry flavor, and color.
If you want less frosting, the recipe card says you can halve the frosting portion. That change keeps the same lemon bar base while making the topping lighter.
For the smoothest frosting, make sure the raspberry powder is fine before mixing it into the butter and powdered sugar. Larger pieces may leave small bits in the frosting, which some people enjoy, but a fine powder gives a more even finish.
Final thoughts
Raspberry Lemon Bars are a lovely dessert when you want bright lemon flavor and a berry topping in one slice. The chewy bar layer, generous raspberry frosting, and optional fresh garnish make them feel special without a complicated method. With confirmed storage notes and a clear frosting method, this is a reliable dessert for sharing. For a lighter berry option, a berry Greek yogurt parfait with granola is another easy choice, and mango coconut sticky rice gives you a fruit-forward dessert with a different flavor profile.
Raspberry Lemon Bars
Equipment
- 8×8 baking pan
- Foil or parchment
- Wire rack
- Mixing bowls
- Whisk
- Silicone spatula or wooden spoon
- Hand mixer or stand mixer
- Food processor or blender
- Fine mesh sieve
Ingredients
Bars
- 1 cup all purpose flour spooned and leveled
- ½ teaspoon baking powder
- ¼ teaspoon salt
- ½ cup unsalted butter melted and cooled slightly
- ⅓ cup granulated sugar
- ¼ cup light brown sugar packed
- finely grated zest of two medium-sized lemons
- 2 tablespoons freshly squeezed lemon juice
- 1 large egg
- 1 large egg yolk
- 1 teaspoon pure vanilla extract
Frosting
- ½ cup unsalted butter softened
- 1½ cups powdered sugar
- ¼ cup freeze dried raspberry powder see note
- ½ teaspoon pure vanilla extract
- 1 tablespoon raspberry jam
- 2 teaspoons milk plus more, if needed
Optional garnishes
- fresh raspberries and/or sliced lemon
Instructions
- Preheat oven to 350°F with the rack in the middle of the oven. Line an 8×8 baking pan with foil or parchment and lightly grease. Set aside.
- Combine flour, baking powder, and salt.
- In a separate bowl, whisk melted butter, granulated sugar, and brown sugar for one full minute. Add lemon zest, juice, whole egg, egg yolk, and vanilla, whisking until well combined. Tap the whisk on the side of the bowl to remove all the excess batter, then remove the whisk from the bowl. Add the flour mixture and stir with a silicone spatula or wooden spoon until well combined.
- Pour the batter into the prepared pan and spread into an even layer.
- Bake for 17-20 minutes, until the top is dry and a toothpick inserted into the center comes out clean (the bars should still be pale). Place on a wire rack to cool completely.
- Using a hand mixer or stand mixer fitted with the paddle attachment, beat butter until smooth. Add powdered sugar, raspberry powder, vanilla extract, and raspberry jam. Beat until fully combined. Add milk, one teaspoon at a time, until the frosting is thin enough to spread. Spread frosting onto the cooled bars.
Notes
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