Blackberry lemon squares are a delicious treat with a tangy lemon flavor and sweet, juicy blackberries. They have a buttery crust that makes each bite feel like a warm hug!
Honestly, the mix of tart and sweet is a party for your taste buds! I love bringing these to gatherings; they always disappear fast. Who can resist such a tasty combo? 😊
Key Ingredients & Substitutions
Butter: Unsalted butter is key for the crust, as it allows you to control the saltiness. If you’re out, you can use margarine or coconut oil, but remember they may alter the flavor slightly.
Sugar: Granulated sugar is used throughout, but you can substitute with cane sugar or coconut sugar for a healthier option. Just keep in mind that coconut sugar has a different taste, adding a hint of caramel.
Eggs: Large eggs provide structure. If you’re looking for an egg-free option, try flax eggs (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water per egg) or unsweetened applesauce (1/4 cup per egg) in the filling, but you may need to adjust your baking time.
Lemon Juice & Zest: Freshly squeezed lemon juice is best for flavor. If lemons are hard to find, bottled lemon juice will work, but it may lack the freshness. Don’t skip the zest; it really enhances the lemony taste!
Blackberries: Fresh blackberries give the best flavor. If unavailable, consider using frozen blackberries or other berries like raspberries or blueberries – they’ll change the taste a bit, but still be delicious!
How Do I Know When My Meringue is Ready?
Getting the meringue right is crucial for that perfect topping. Here’s how to ensure you achieve stiff peaks and a glossy finish:
- Make sure your mixing bowl and beaters are clean and free of any grease; this helps the egg whites whip up better.
- Add the cream of tartar early on in the mixing process. It stabilizes the egg whites.
- Beat the egg whites on medium speed until soft peaks form, then gradually add sugar. Increase speed to high until you see stiff peaks. They should stand straight up when you lift the beaters.
Take your time while mixing; rushing can lead to a runny meringue, which won’t hold its shape. Once ready, pipe or spread the meringue quickly to avoid deflation.
Delicious Blackberry Lemon Squares Recipe
Ingredients You’ll Need:
For the Crust:
- 1 cup (2 sticks) unsalted butter, softened
- 1/2 cup granulated sugar
- 2 cups all-purpose flour
- 1/4 tsp salt
For the Lemon Filling:
- 1 1/2 cups granulated sugar
- 1/4 cup all-purpose flour
- 4 large eggs
- 2/3 cup freshly squeezed lemon juice (about 3-4 lemons)
- 1 tbsp lemon zest
For the Blackberry Layer:
- 1 1/2 cups fresh blackberries
- 1/3 cup granulated sugar
- 1 tbsp lemon juice
- 1 tsp cornstarch (optional, to thicken)
For the Meringue Topping:
- 3 large egg whites
- 1/2 cup granulated sugar
- 1/4 tsp cream of tartar
- Lemon zest, for garnish
How Much Time Will You Need?
This delightful recipe will take about 30 minutes of active preparation time and about 60 minutes of baking time. After that, you will need to chill it in the refrigerator for at least 2 hours before serving. So, plan on a total of around 3 hours to fully enjoy your Blackberry Lemon Squares, including set time!
Step-by-Step Instructions:
1. Preheat the Oven:
Start by preheating your oven to 350°F (175°C). To make lifting the bars out easier, line a 9×9 inch baking pan with parchment paper, making sure to leave some paper hanging over the edges.
2. Prepare the Crust:
In a mixing bowl, combine the softened butter and sugar. Cream them together until the mixture is light and fluffy. Gradually add in the flour and salt until everything is mixed well and forms a lovely dough.
3. Bake the Crust:
Now, gently press the dough evenly into the bottom of your prepared baking pan. Pop it into the oven and bake for 18-20 minutes, or until you see the edges turning lightly golden. Once done, take it out and let it cool slightly.
4. Make the Lemon Filling:
In a different bowl, whisk together the sugar, flour, eggs, lemon juice, and lemon zest until you have a smooth mixture. Carefully pour this mixture over your warm crust, spreading it evenly.
5. Prepare the Blackberry Layer:
In a small saucepan, mix the blackberries, granulated sugar, lemon juice, and cornstarch (if you’re using it). Cook over medium heat, stirring frequently until the mixture thickens slightly, which should take about 5 minutes. Let it cool a bit once done.
6. Layer the Blackberries:
Carefully spoon the blackberry mixture over the lemon filling, spreading it gently. This will create a beautiful layer of fruit.
7. Bake Again:
Return the pan to the oven and bake for an additional 25-30 minutes. You want the lemon layer to be set but still a little jiggly in the center when you take it out.
8. Make the Meringue Topping:
In a clean bowl, beat the egg whites and cream of tartar using an electric mixer on medium speed until soft peaks start to form. Then, gradually add in the sugar while continuing to beat on high speed until you get stiff and glossy peaks.
9. Top with Meringue:
Remove your pan from the oven and immediately pipe or spread the meringue on top of the blackberry layer. You can create pretty dollops or swirls.
10. Toast the Meringue:
If you want to add a nice toasted effect, you can use a kitchen torch to brown the tips of the meringue gently. If you don’t have a torch, you can place the pan under the broiler for 1-2 minutes, but be careful not to let it burn!
11. Cool and Chill:
Let the squares cool completely in the pan on a wire rack. After that, pop them in the refrigerator for at least 2 hours to fully set up before serving.
12. Slice and Serve:
Once everything is set, lift the bars out of the pan using the parchment paper. Cut them into squares and garnish each one with a fresh blackberry and a bit of lemon zest for that extra touch.
13. Enjoy!
Serve these delightful Blackberry Lemon Squares chilled, and enjoy the burst of fresh and tangy flavors with every bite!
Can I Substitute the Blackberries?
Absolutely! If fresh blackberries are unavailable, you can use frozen blackberries or substitute with other fruits like raspberries or blueberries. Just keep in mind that the flavor and color will change slightly.
How Do I Store Leftover Blackberry Lemon Squares?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. This will keep them fresh and delicious. You can also freeze them for up to a month; just make sure to wrap them tightly to prevent freezer burn.
What if My Meringue Isn’t Stiff?
If your meringue isn’t getting stiff, check that your mixing bowl and beaters are completely clean and free of any grease. Adding cream of tartar helps stabilize the egg whites, so don’t skip that step. If it’s still not forming peaks, it might be due to the eggs being at the wrong temperature; try starting with room temperature egg whites next time!
Can I Make This Recipe Vegan?
Yes, you can make vegan substitutions for this recipe! Use a vegan butter alternative for the crust, and replace the eggs with flax eggs (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water per egg) or aquafaba (3 tablespoons per egg) for the lemon filling and meringue. Note that the texture and flavor may vary a bit!
