Let me tell you about the day these Lemon Crumb Bars became my lifesaver. It was the peak of summer, my AC had given up on me, and I was craving something light and refreshing. Desperate for a solution, I dug through my grandma’s old recipe box.

Tucked between her legendary apple pie and a highly questionable jello mold, I found this gem. One bite transported me back to her sunlit kitchen, where she’d zest lemons effortlessly, filling the air with that unmistakable citrusy aroma.
Why These Lemon Crumb Bars Are My Summer Go-To
They strike the perfect balance of sweet and tart. You know how some lemon desserts make you feel like you just bit straight into a lemon? Not these. They have just the right amount of zing to wake up your taste buds without overwhelming them.
And the best part? They’re so easy to make—the kind of recipe you can whip up while your toddler naps. Because let’s be honest, those are the recipes we all need more of in our lives!
The Secret to Lemon Bar Perfection
Over time (and a few baking mishaps), I’ve learned some key tricks to making these bars absolutely irresistible:
✔ Fresh lemon juice is a must – Bottled juice just doesn’t compare. Pro tip: Roll your lemons on the counter before juicing to get every last drop.
✔ Chilling is crucial – I know it’s tempting to dig in right away, but letting them chill in the fridge allows the flavors to meld beautifully. Trust me, the wait is worth it.
✔ Pack the crumb layer well – The bottom crust should be firm and sturdy. Use the bottom of a measuring cup to press it down evenly.
✔ Room temperature eggs make a difference – Cold eggs can cause the filling to turn lumpy, and nobody wants that!
Let’s Get Baking!
Making these bars is as simple as layering deliciousness:
1️⃣ Make the crumb mixture – A quick stir of dry ingredients and melted butter is all it takes.
2️⃣ Create the crust – Press most of the crumb mixture into your pan and bake it for a few minutes.
3️⃣ Whip up the filling – A velvety blend of condensed milk, egg yolks, cream, and fresh lemon juice creates the most luscious lemon layer.
4️⃣ Assemble & bake – Pour the filling over the hot crust, sprinkle the remaining crumb mixture on top, and pop it back in the oven.
5️⃣ The hardest part: waiting! – Let them cool, then refrigerate for a few hours before slicing. (Yes, I’ve burned my tongue sneaking an early bite. Learn from my mistakes!)
Make It Your Own
Want to put a personal spin on these bars? Try these fun variations:
🍋 Add lemon zest to the crumb mixture for an extra citrusy punch.
🫐 Fold in some blueberries for a fruity twist.
✨ Drizzle with a simple glaze if you’re feeling fancy.
What to Serve With Lemon Crumb Bars
These bars are incredible on their own, but if you want to take them up a notch:
☁️ A dollop of whipped cream
🍦 A scoop of vanilla ice cream
🍵 A cup of Earl Grey tea (Trust me, it’s a match made in heaven!)
The Recipe: Lemon Crumb Bars
Prep Time: 15 minutes
Cook Time: 30 minutes
Cooling Time: 4 hours
Total Time: 4 hours 45 minutes
Servings: 12 bars
Ingredients:
For the Crust:
- 2 1/3 cups all-purpose flour
- 1/2 cup granulated sugar
- 1/2 cup light brown sugar, packed
- 3/4 teaspoon salt
- 1/4 teaspoon baking powder
- 12 tablespoons unsalted butter, melted and cooled
For the Lemon Filling:
- 1 (14 oz) can sweetened condensed milk
- 4 large egg yolks, room temperature
- 2 tablespoons heavy cream
- 1/8 teaspoon salt
- 2/3 cup fresh lemon juice (about 4-5 lemons)
Instructions:
1️⃣ Preheat your oven to 350°F (175°C). Line a 9×9 inch baking pan with parchment paper.
2️⃣ In a large bowl, mix together the flour, sugars, salt, and baking powder. Pour in the melted butter and stir until crumbly.
3️⃣ Press two-thirds of the mixture into the prepared pan and bake for 15 minutes.
4️⃣ While the crust bakes, whisk together the sweetened condensed milk, egg yolks, heavy cream, and salt in a large bowl. Gradually whisk in the lemon juice until smooth.
5️⃣ Pour the filling over the hot crust, then sprinkle the remaining crumb mixture evenly on top.
6️⃣ Bake for 15-20 minutes, until the top is golden and the filling is set.
7️⃣ Cool completely at room temperature, then refrigerate for at least 4 hours before cutting into bars.
Final Thoughts
There you have it—your new favorite summer dessert. These Lemon Crumb Bars are sunshine in every bite, packed with bright citrus flavor and a buttery crumb topping. Just try not to eat the whole pan in one sitting (not that I’d know anything about that…).
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