These Lemon Crumb Bars are the perfect blend of tangy and sweet, featuring a buttery crust and smooth lemon filling. Ideal for summer gatherings, picnics, or simply when you’re in the mood for a refreshing treat, these bars stand out with their zesty flavor and delightful texture. You’ll love how easy they are to make and how they brighten up any dessert table!

Why You’ll Love This Recipe
- Simple to Prepare: With only a few ingredients, these bars come together quickly, making them a great choice for bakers of all skill levels.
- Deliciously Tangy Flavor: The combination of fresh lemon juice and sweetened condensed milk creates a delightful balance of tartness and sweetness.
- Versatile Treat: Serve them at parties, family gatherings, or just as an afternoon snack. They fit perfectly into any occasion!
- Perfectly Textured: The crumbly crust pairs beautifully with the creamy filling, providing a satisfying bite every time.
- Make Ahead Option: These bars can be prepared in advance and stored in the fridge, making them a convenient dessert option.
Tools and Preparation
To make your baking experience seamless, gather some essential tools before you start. Having the right equipment can help you achieve the best results with your Lemon Crumb Bars!
Essential Tools and Equipment
- 9×9-inch baking pan
- Parchment paper
- Mixing bowls
- Whisk
- Measuring cups and spoons
Importance of Each Tool
- Baking Pan: A 9×9-inch baking pan is crucial for even cooking. It helps create the perfect size for these bars.
- Parchment Paper: Lining your pan with parchment paper ensures easy removal of the bars once they’re baked.
- Mixing Bowls: Having separate bowls for your crust and filling keeps your ingredients organized and makes mixing easier.
- Whisk: A good whisk helps blend your ingredients smoothly, especially when incorporating liquids into dry components.
Ingredients
For the Crust
- 2 ⅓ cups all-purpose flour
- ½ cup granulated sugar
- ½ cup light brown sugar, packed
- ¾ teaspoon salt
- ¼ teaspoon baking powder
- 12 tablespoons unsalted butter, melted and cooled
For the Lemon Filling
- 1 (14-ounce) can sweetened condensed milk
- 4 large egg yolks, room temperature
- 2 tablespoons heavy cream
- ⅛ teaspoon salt
- ⅔ cup fresh lemon juice (about 4-5 lemons)

How to Make Lemon Crumb Bars
Step 1: Preheat the Oven
Set your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper to prepare for your crust.
Step 2: Make the Crust
- In a large bowl, mix together the all-purpose flour, granulated sugar, brown sugar, salt, and baking powder until well combined.
- Pour in the melted butter. Stir until the mixture becomes crumbly.
- Press about ⅔ of this crumb mixture evenly into the bottom of your prepared pan.
- Bake in preheated oven for about 15 minutes or until lightly golden.
Step 3: Prepare the Lemon Filling
In another large bowl:
1. Whisk together sweetened condensed milk, egg yolks, heavy cream, and salt until combined.
2. Gradually add fresh lemon juice while whisking until smooth.
Step 4: Assemble and Bake
Pour the lemon filling over the hot crust from Step 2.
Sprinkle the remaining crumb mixture evenly over the top.
Bake for an additional 15-20 minutes or until the top is golden brown and filling is set.
Step 5: Cool and Chill
Allow your Lemon Crumb Bars to cool completely at room temperature.
Refrigerate them for at least 4 hours before slicing into squares and serving. Enjoy!
How to Serve Lemon Crumb Bars
Lemon crumb bars are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a summer gathering or simply indulging at home, these bars can be served to impress.
Pair with Fresh Berries
- Fresh strawberries, blueberries, or raspberries add a pop of color and natural sweetness that complements the tangy lemon filling.
Serve with Whipped Cream
- A dollop of freshly whipped cream on top enhances the creamy texture and balances the tartness of the lemon.
Accompany with Ice Cream
- Vanilla or lemon sorbet makes a refreshing pairing, especially during warm weather, providing a creamy contrast to the crumbly bars.
Garnish with Mint
- A sprig of fresh mint not only adds a burst of color but also introduces a refreshing aroma that elevates the serving experience.
Drizzle with Lemon Glaze
- A simple lemon glaze made from powdered sugar and lemon juice can be drizzled over the top for added sweetness and zest.
How to Perfect Lemon Crumb Bars
Making lemon crumb bars requires attention to detail for the best results. Here are some tips to ensure your bars turn out perfectly every time.
- Use Fresh Lemons – Freshly squeezed lemon juice brings out the vibrant flavor far better than bottled juice.
- Measure Ingredients Accurately – Precision in measuring flour and sugar is key to achieving the right texture for both crust and filling.
- Chill Before Serving – Allowing the bars to chill thoroughly helps them set properly, making slicing and serving easier.
- Don’t Overbake – Keep an eye on baking time; overbaking can lead to a dry filling. The center should slightly jiggle when you take them out.
- Cool Completely – Letting them cool at room temperature ensures they firm up nicely before refrigeration.
- Dust with Powdered Sugar – A light dusting of powdered sugar just before serving adds an elegant touch and extra sweetness.

Best Side Dishes for Lemon Crumb Bars
When serving lemon crumb bars, consider these delightful side dishes that can enhance your dessert experience.
- Fresh Fruit Salad – A vibrant mix of seasonal fruits adds freshness and complements the citrus flavors of the bars.
- Pound Cake Slices – Light and buttery pound cake pairs beautifully with the tartness of lemon crumb bars.
- Yogurt Parfait – Layer yogurt with granola and fruit for a creamy, crunchy side that balances sweet and tart flavors.
- Cheese Platter – Soft cheeses like goat cheese or mascarpone provide a rich contrast to the bright flavors in the bars.
- Chocolate Mousse – Rich chocolate mousse can serve as an indulgent counterpoint to the refreshing taste of lemon.
- Iced Tea or Lemonade – Chilled beverages like iced tea or homemade lemonade keep the citrus theme alive while adding refreshment.
Common Mistakes to Avoid
Avoiding common mistakes can make a big difference in the success of your Lemon Crumb Bars. Here are some pitfalls to watch out for:
- Using cold ingredients: Starting with cold eggs or butter can affect the texture of the filling and crust. Always use room temperature ingredients for the best results.
- Not measuring accurately: Baking is a science, so incorrect measurements can lead to disappointing bars. Use a kitchen scale or measuring cups for accuracy.
- Overbaking the crust: A crust that’s too dark can overpower the delicate lemon flavor. Keep an eye on it and remove it from the oven when it’s lightly golden.
- Skipping the chilling time: Patience is key! Chilling the bars allows them to set properly, making them easier to slice. Don’t skip this essential step.
- Not adjusting for tartness: Lemons vary in acidity. Taste your lemon juice before adding it to ensure you achieve your desired level of tartness.
Storage & Reheating Instructions
Refrigerator Storage
- item Store leftover Lemon Crumb Bars in an airtight container in the fridge.
- item They will stay fresh for up to 5 days.
Freezing Lemon Crumb Bars
- item Freeze bars in an airtight container to keep them fresh for up to 3 months.
- item For best results, separate layers with parchment paper.
Reheating Lemon Crumb Bars
- Oven: Preheat to 350°F (175°C) and warm bars for about 10 minutes.
- Microwave: Heat individual pieces in 15-second increments until warmed through.
- Stovetop: Place bars in a skillet over low heat, covering with a lid until warmed.

Frequently Asked Questions
Here are some frequently asked questions about making Lemon Crumb Bars:
Can I use bottled lemon juice for my Lemon Crumb Bars?
Using fresh lemon juice is recommended for the best flavor, but bottled juice can be used in a pinch if necessary.
How do I know when my Lemon Crumb Bars are done baking?
The top should be golden brown and slightly firm to the touch. The filling will continue to set as they cool.
Can I customize my Lemon Crumb Bars?
Absolutely! You can add zest for extra lemon flavor or incorporate berries like blueberries for a delicious twist.
How long do these Lemon Crumb Bars last?
When stored properly, Lemon Crumb Bars last up to 5 days in the refrigerator and can be frozen for up to 3 months.
What is the best way to cut my Lemon Crumb Bars?
Use a sharp knife and wipe it clean between cuts for neat slices. For cleaner edges, chill the bars before cutting.
Final Thoughts
Lemon Crumb Bars are not only tangy and sweet but also versatile enough for any occasion. Whether you’re serving them at a summer picnic or enjoying them as an afternoon treat, these bars are sure to impress. Feel free to customize them with additional flavors or toppings!

Lemon Crumb Bars
- Total Time: 50 minutes
- Yield: Approximately 16 servings 1x
Description
Lemon Crumb Bars are a delightful dessert that perfectly balances tangy and sweet flavors, making them an irresistible treat for any occasion. Featuring a buttery, crumbly crust topped with a smooth, creamy lemon filling, these bars are ideal for summer gatherings or simply indulging at home. They are easy to make, requiring just a few ingredients and simple steps, ensuring that even novice bakers can achieve delicious results. Whether served as a refreshing snack or a show-stopping dessert, Lemon Crumb Bars will brighten up your table and leave everyone asking for seconds.
Ingredients
- 2 ⅓ cups all-purpose flour
- ½ cup granulated sugar
- ½ cup packed light brown sugar
- 12 tablespoons unsalted butter (melted)
- 1 (14-ounce) can sweetened condensed milk
- 4 large egg yolks
- ⅔ cup fresh lemon juice
- 2 tablespoons heavy cream
Instructions
- Preheat your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper.
- In a bowl, mix flour, granulated sugar, brown sugar, salt, and baking powder. Stir in melted butter until crumbly. Press two-thirds of the mixture into the pan and bake for 15 minutes until lightly golden.
- In another bowl, whisk together sweetened condensed milk, egg yolks, heavy cream, salt, and lemon juice until smooth.
- Pour the lemon filling over the crust and sprinkle with remaining crumb mixture. Bake for an additional 15-20 minutes until golden brown.
- Allow to cool completely at room temperature before refrigerating for at least 4 hours before slicing into squares.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 220
- Sugar: 18g
- Sodium: 150mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 31g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 70mg
Keywords: For extra zing, add lemon zest to the filling. Pair with fresh berries or whipped cream for an elevated serving option. To store leftover bars, keep them in an airtight container in the refrigerator for up to five days.
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