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Lemon Crumb Bars

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Lemon Crumb Bars are a little ray of sunshine on any day, aren’t they? Here at Nonna’s Dishes, we adore a good sweet treat, especially when it reminds us of warmer days and the bright flavors of Italy. These Lemon Crumb Bars bring all that joy to your kitchen, filling your home with the most wonderful citrus aroma. Just thinking about their buttery crust, tangy lemon filling, and sweet crumb topping makes our mouths water. We promise, these Lemon Crumb Bars are simple to make and absolutely irresistible. 

 

Lemon Crumb Bars - Process or ingredients
Preparation process

 

Why You Will Love This Lemon Crumb Bars Recipe

There is so much to adore about this lemon crumb bars recipe. First, it is pure comfort. Like a warm hug from Nonna herself, these bars taste like tradition and joy. They are also surprisingly quick to put together, which is always a bonus when you have a busy week but still want something special. The flavor balance is perfect a zesty tang from the lemon meets a delightful sweetness, all wrapped in that wonderful buttery crumb. It is a harmonious combination that sings on your palate.

Lucia remembers her nonna making something similar during the lemon harvest in Sicily. Every bite brought sunshine into the kitchen. This lemon crumb bars recipe is special because it uses simple ingredients to create something truly extraordinary. It is the kind of dessert that makes everyone ask for seconds and then for the recipe. Trust us, it is a keeper you will want to pass down in your own family.

 

Ingredients Needed for This Lemon Crumb Bars Recipe

Gather your ingredients, dear ones! Fresh is always best, especially when it comes to lemons.

For the Crumb Mixture (Crust and Topping):

  • 1 ½ cups all purpose flour
  • ½ cup granulated sugar
  • ½ cup (1 stick) unsalted butter, cold and cut into small cubes
  • ½ teaspoon salt
  • 1 tablespoon fresh lemon zest (from about 1 large lemon)

For the Lemon Filling:

  • 2 large eggs
  • ¾ cup granulated sugar
  • ¼ cup fresh lemon juice (from 2 medium lemons)
  • 2 tablespoons all purpose flour
  • 1 teaspoon fresh lemon zest

How to Make This Lemon Crumb Bars Recipe

Now, let us get our hands a little floury! This lemon crumb bars recipe is straightforward, and we will guide you every step of the way.

  1. 1. Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper, leaving an overhang on the sides. This makes it so easy to lift out the bars later.
  2. 2. In a large bowl, combine the 1 ½ cups of all purpose flour, ½ cup granulated sugar, ½ teaspoon salt, and 1 tablespoon lemon zest. Add the cold, cubed butter. Use a pastry blender or your fingertips to cut the butter into the flour mixture until it resembles coarse crumbs. We like to think of it as making little sandy beaches!
  3. 3. Press about two thirds of this crumb mixture evenly into the bottom of your prepared baking pan. This will be your lovely crust.
  4. 4. Bake the crust in the preheated oven for 15 minutes, until it is lightly golden. While it is baking, we will prepare the filling.
  5. 5. For the lemon filling, in a medium bowl, whisk together the 2 large eggs, ¾ cup granulated sugar, ¼ cup fresh lemon juice, 2 tablespoons all purpose flour, and 1 teaspoon lemon zest until the mixture is smooth and well combined.
  6. 6. Carefully pour the lemon filling over the warm, partially baked crust in the pan.
  7. 7. Take the remaining one third of the crumb mixture and sprinkle it evenly over the top of the lemon filling. This creates that wonderful crumbly topping.
  8. 8. Return the pan to the oven and bake for another 20 to 25 minutes, or until the topping is golden brown and the lemon filling is set. A little wobble in the center is fine, it will firm up as it cools.
  9. 9. Let the Lemon Crumb Bars cool completely in the pan on a wire rack before attempting to cut them. This is the hardest part, we know, but it is essential for clean slices! Once completely cooled, lift the bars out of the pan using the parchment paper overhang and cut into squares.

How to Serve This Lemon Crumb Bars Recipe

These Lemon Crumb Bars are wonderful on their own, but a few little touches can make them even more special. Serve them alongside a cup of espresso or a fragrant herbal tea for a delightful afternoon treat. For a truly indulgent experience, a small dollop of freshly whipped cream or a scoop of vanilla bean gelato makes a lovely pairing. You could also dust them with a light sprinkle of powdered sugar just before serving for a beautiful presentation. They are perfect for dessert, a snack, or even a fancy brunch gathering.

How to Store This Lemon Crumb Bars Recipe

If you happen to have any of these delicious Lemon Crumb Bars left over, storing them properly will keep them fresh. Keep them in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. If you want to keep them longer, these bars freeze beautifully. Wrap individual bars tightly in plastic wrap, then place them in a freezer safe bag or container for up to 2 months. Thaw them at room temperature before enjoying.

Tips to Make This Lemon Crumb Bars Recipe

To make sure your Lemon Crumb Bars turn out perfectly every time, here are a few Nonna approved tips:

  • Cold Butter is Key: When making the crumb mixture, always use very cold butter. This helps create that wonderfully flaky, tender texture.
  • Do Not Overmix: Mix the crumb ingredients just until they come together. Overmixing can make the crust tough.
  • Fresh Lemon Power: Always use fresh lemon juice and zest. The bottled stuff just will not give you the same bright, vibrant flavor.
  • Cool Completely: We know it is hard to wait, but allowing the bars to cool completely ensures the filling sets properly and makes for clean, neat slices.
  • Adjust Sweetness: If you prefer your lemon bars a little less tart, you can slightly increase the sugar in the filling by a tablespoon or two.

Helpful Notes for This Lemon Crumb Bars Recipe

This recipe is designed to be easy and delicious. We use all purpose flour, but you can experiment with a gluten free all purpose blend if you have dietary needs. Just make sure it is a blend suitable for baking. For your equipment, a good 8×8 inch baking pan is essential, and parchment paper truly makes cleanup a breeze. A pastry blender is handy for the crumb mixture, but your fingertips work just as well to cut in the butter.

Variation of This Lemon Crumb Bars Recipe

While these Lemon Crumb Bars are perfect as is, you can certainly play with the flavors!

  • Berry Burst: Add a handful of fresh blueberries or raspberries to the lemon filling before baking for a delightful berry lemon combination.
  • Almond Touch: Mix 1/4 teaspoon of almond extract into the crumb mixture for a subtle almond flavor that pairs wonderfully with lemon.
  • Coconut Crumb: Add a couple of tablespoons of shredded coconut to the crumb topping for a tropical twist.
  • Lime Zest: For a different citrus zing, swap out the lemon zest and juice for lime!

FAQs About This Lemon Crumb Bars Recipe

Q: Can I use bottled lemon juice for these Lemon Crumb Bars?
A: We really recommend using fresh lemon juice for the best flavor! Bottled juice just does not have the same bright, zesty quality that makes these bars so special.
Q: My crumb mixture seems too dry, what should I do?
A: Sometimes the humidity in your kitchen can affect doughs. If it is too dry, add a teaspoon of cold water at a time, just until the mixture holds together when you press it. Be careful not to add too much!
Q: How do I know when the Lemon Crumb Bars are fully baked?
A: The topping should be golden brown, and the lemon filling should look set. There might be a slight jiggle in the very center, but it should not be liquid. It will firm up completely as it cools.

Conclusion

We hope these Lemon Crumb Bars bring a burst of sunshine and joy to your kitchen, just as they do to ours. There is truly nothing like the taste of homemade, especially when it is bright with lemon and rich with buttery goodness. We cannot wait for you to try this lemon crumb bars recipe and share it with your loved ones. Let us know in the comments how your Lemon Crumb Bars turn out!

Maria Rossi
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