Quick Description
These Lemon Crumb Bars feature a buttery shortbread-style crust, a silky tangy lemon filling, and a golden crumb topping. Every bite balances sweet citrus brightness with rich buttery crumble, giving you that classic bakery-style texture at home. Perfect for dessert trays, afternoon tea, spring gatherings, or make-ahead treats.
Servings & Timing
Serves: 12 bars
Prep Time: 15 minutes
Bake Time: 35–40 minutes
Cooling Time: 1 hour
Total Time: ~2 hours
Ingredients List
Crust & Crumble
- 2½ cups all-purpose flour
- ¾ cup granulated sugar
- ¼ tsp salt
- 1 cup cold unsalted butter, cubed
- 1 tsp vanilla extract (optional)
Lemon Filling
- 1 can (14 oz) sweetened condensed milk
- 3 large egg yolks
- ½ cup fresh lemon juice
- 1 tbsp lemon zest
- 1 tbsp cornstarch (optional, for thicker filling)
Instructions
1. Preheat the Oven
Preheat oven to 350°F (175°C).
Line an 8×8 or 9×9 inch baking pan with parchment paper, leaving overhang for easy removal.
2. Make the Crumb Mixture
In a large bowl combine:
- Flour
- Sugar
- Salt
Add the cold cubed butter.
Use a pastry cutter, fork, or fingertips to work butter into the flour until the mixture looks like coarse crumbs.
Stir in vanilla extract if using.
3. Form the Base
Reserve about 1 cup of crumb mixture for topping.
Press the remaining crumb mixture firmly into the bottom of the prepared pan.
Bake for 12–15 minutes until lightly set but not fully browned.
4. Prepare the Lemon Filling
In a bowl whisk together:
- Sweetened condensed milk
- Egg yolks
- Fresh lemon juice
- Lemon zest
- Cornstarch (if using)
Whisk until smooth and creamy.
5. Assemble
Pour the lemon filling over the warm crust.
Spread evenly.
Sprinkle reserved crumb mixture over the top.
6. Bake Again
Return to oven and bake 22–25 minutes until:
- Top is lightly golden
- Filling is mostly set with slight jiggle in center
7. Cool & Chill
Cool completely at room temperature.
Refrigerate for 1 hour for clean slices and best texture.
8. Slice & Serve
Lift from pan using parchment paper.
Cut into bars and serve.
Optional: dust with powdered sugar.
Nutrition (per bar – approximate)
Calories: ~310
Protein: ~5 g
Carbohydrates: ~38 g
Fat: ~15 g
Fiber: ~1 g
Sugar: ~24 g
Benefits
Bakery-Style Texture: Buttery crumble with creamy citrus center.
Make-Ahead Friendly: Great chilled the next day.
Crowd Pleaser: Bright lemon flavor appeals to many.
Simple Ingredients: Pantry staples plus fresh lemon.
Additional Notes
Fresh lemon juice gives the best flavor.
For sharper lemon taste, add extra zest.
Dietary Info
Vegetarian: Yes
Nut-Free: Yes
Contains Dairy: Yes
Brief Introduction
Lemon crumb bars are a timeless dessert combining the richness of buttery crust with the refreshing brightness of citrus. They’re easier than pie but just as satisfying.
Step-by-Step Cooking Guide
Make Crumbs: Blend butter into dry ingredients.
Bake Base: Pre-bake crust for structure.
Whisk Filling: Smooth lemon custard mixture.
Top & Bake: Add crumbs and finish baking.
Chill: Helps bars slice neatly.
Ingredient Details & Substitutions
Sweetened Condensed Milk: Creates creamy sweet filling.
Egg Yolks: Help thicken and enrich the filling.
Lemon Juice: Adds tangy brightness.
Butter: Essential for tender crumble texture.
Substitutions:
- Use lime juice for lime bars.
- Use gluten-free flour blend if needed.
- Add coconut flakes to crumble for variation.
Recipe Variations & Serving Suggestions
Berry Lemon Bars
Add raspberries or blueberries over filling before crumble topping.
Coconut Lemon Bars
Mix shredded coconut into crumb topping.
Extra Tangy Version
Increase lemon zest and reduce sugar slightly.
Serve with:
- Tea
- Coffee
- Whipped cream
- Fresh berries
Storage & Make-Ahead
Refrigerate: Up to 5 days covered.
Freeze: Up to 2 months wrapped well.
Serve chilled or room temperature.
FAQs
Why is my filling soft?
It may need more chilling time or a few extra bake minutes.
Can I use bottled lemon juice?
Fresh is strongly recommended for best flavor.
Do I need cornstarch?
No, but it helps create a firmer filling.
Optional Personal Story
I love lemon desserts because they feel rich and refreshing at the same time. These bars always remind me of bakery display cases where the citrus desserts disappear first.
