Lemon Crumb Bars

BY

|

Update : February 28, 2026

Delicious lemon crumb bars with a buttery crumb crust and tangy lemon filling

Why Make This Recipe

Lemon Crumb Bars are a delightful treat that brings a burst of citrus flavor with every bite. These bars are not only easy to make, but they also provide a perfect balance of tanginess and sweetness. Whether you are looking for a snack, a dessert for a gathering, or just something special for yourself, these bars are a wonderful choice. Their crumbly crust and smooth lemon filling make them irresistible.

How to Make Lemon Crumb Bars

Ingredients

  • 1 cup all-purpose flour
  • 1/2 cup powdered sugar
  • 1/4 cup granulated sugar
  • 1/2 cup unsalted butter, softened
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 large egg
  • 1/4 cup fresh lemon juice
  • 1 tablespoon lemon zest
  • 1/4 cup granulated sugar (for filling)
  • 1/4 teaspoon salt (for filling)
  • 1 tablespoon cornstarch

Directions

  1. Preheat the oven to 350°F (175°C) and grease an 8×8 inch baking dish.
  2. In a bowl, mix together flour, powdered sugar, baking powder, and salt.
  3. Cut in the softened butter until the mixture resembles crumbs.
  4. Press the crumb mixture into the bottom of the prepared baking dish.
  5. Bake for 15 minutes.
  6. In another bowl, whisk together egg, lemon juice, lemon zest, granulated sugar, cornstarch, and salt.
  7. Pour the lemon filling over the baked crust.
  8. Bake for an additional 20 minutes.
  9. Allow to cool completely before slicing into bars and serving.

How to Serve Lemon Crumb Bars

Lemon Crumb Bars are best served chilled or at room temperature. You can dust them with a little powdered sugar for an extra touch of sweetness and presentation. They are perfect for picnics, parties, or just as a treat with your afternoon tea.

How to Store Lemon Crumb Bars

To store your Lemon Crumb Bars, keep them in an airtight container in the refrigerator. They should stay fresh for up to one week. If you want to keep them longer, you can freeze them. Just make sure to wrap them well in plastic wrap and then place them in a freezer-safe container.

Tips to Make Lemon Crumb Bars

  • Use fresh lemon juice and zest for the best flavor.
  • Make sure the butter is softened, as this helps create a better crumb texture.
  • Allow the bars to cool completely before slicing to avoid messy cuts.
  • You can add a bit more lemon zest if you prefer a stronger lemon flavor.

Variation

If you want to change things up, consider adding some poppy seeds to the filling for a nice texture. You can also top the bars with whipped cream or serve them with a side of fresh berries for a refreshing contrast.

FAQs

1. Can I use bottled lemon juice?
While fresh lemon juice is preferred for the best flavor, you can use bottled lemon juice in a pinch.

2. Can I make these bars gluten-free?
Yes! You can substitute all-purpose flour with a gluten-free flour blend.

3. How thick should the crust be?
The crust should be evenly pressed down to about 1/4 inch thick, allowing enough space for the lemon filling to rise during baking.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Lemon Crumb Bars

Delightful lemon bars with a crumbly crust and smooth lemon filling, perfect as a snack or dessert.

  • Total Time: 50 minutes
  • Yield: 12 servings 1x

Ingredients

Scale
  • 1 cup all-purpose flour
  • 1/2 cup powdered sugar
  • 1/4 cup granulated sugar
  • 1/2 cup unsalted butter, softened
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1 large egg
  • 1/4 cup fresh lemon juice
  • 1 tablespoon lemon zest
  • 1/4 cup granulated sugar (for filling)
  • 1/4 teaspoon salt (for filling)
  • 1 tablespoon cornstarch

Instructions

  1. Preheat the oven to 350°F (175°C) and grease an 8×8 inch baking dish.
  2. In a bowl, mix together flour, powdered sugar, baking powder, and salt.
  3. Cut in the softened butter until the mixture resembles crumbs.
  4. Press the crumb mixture into the bottom of the prepared baking dish.
  5. Bake for 15 minutes.
  6. In another bowl, whisk together egg, lemon juice, lemon zest, granulated sugar, cornstarch, and salt.
  7. Pour the lemon filling over the baked crust.
  8. Bake for an additional 20 minutes.
  9. Allow to cool completely before slicing into bars and serving.

Notes

Best served chilled or at room temperature. Dust with powdered sugar for added sweetness.

  • Author: jessica-baker
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 bar
  • Calories: 200
  • Sugar: 15g
  • Sodium: 150mg
  • Fat: 9g
  • Saturated Fat: 6g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 25mg

Keywords: lemon bars, dessert, snack, citrus treat, easy recipe

Keep your apron on!!! the party’s not over yet!

Starbucks Copycat Lemon Loaf slice on a plate with lemon slices
Desserts

Starbucks Copycat Lemon Loaf

why make this recipe Making this Starbucks Copycat Lemon Loaf at home brings the bright and refreshing flavor of lemon right to your kitchen. It’s
Jessica Baker
February 28, 2026
Delicious homemade Lemon Raspberry Cookies on a plate
Desserts

Lemon Raspberry Cookies

why make this recipe Lemon Raspberry Cookies are a delightful treat that combines the bright and zesty flavor of lemon with the sweet-tart taste of
Jack
February 28, 2026
Lemon curd bars garnished with a dusting of powdered sugar on a white plate
Desserts

Lemon Curd Bars

Why Make This Recipe Lemon Curd Bars are a delightful treat that combines the tangy taste of lemon with a buttery crust. They are perfect
Jessica Baker
February 28, 2026

Leave a Comment

Recipe rating