Homemade Lemon Crumb Bars Recipe

Introduction

These Homemade Lemon Crumb Bars offer a perfect balance of tangy lemon filling and a buttery, oat-studded crumb crust. They’re bright, sweet, and ideal for a refreshing dessert or snack any time of year.

Ingredients

• 1 cup all-purpose flour
• 1 cup old-fashioned oats
• 1/4 teaspoon salt
• 3/4 teaspoon baking soda
• 10 tablespoons unsalted butter, melted
• 1/2 cup light brown sugar, packed
• 1 teaspoon pure vanilla extract
• 1 (14 oz) can sweetened condensed milk
• 2 tablespoons sour cream (or plain yogurt)
• 1 large egg yolk
• 1/4 cup freshly squeezed lemon juice
• 1 tablespoon finely grated lemon zest

Instructions

1. Step 1: Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper and lightly spray with nonstick spray.
2. Step 2: In a medium bowl, whisk together the flour, oats, salt, and baking soda. In a separate bowl, combine the melted butter, brown sugar, and vanilla extract.
3. Step 3: Stir the wet ingredients into the dry until just combined. Reserve 3/4 cup of this mixture for the topping, then press the remaining crust mixture evenly into the prepared pan. Bake for 10 minutes.
4. Step 4: While the crust bakes, whisk together the sweetened condensed milk, sour cream, egg yolk, lemon juice, lemon zest, and an extra 1/2 teaspoon vanilla extract until smooth and well combined.
5. Step 5: Pour the lemon filling evenly over the hot crust. Sprinkle the reserved crumbs over the top, then bake for an additional 17 to 20 minutes, until the topping is golden and the filling is set.
6. Step 6: Allow the bars to cool completely in the pan before slicing into squares to ensure clean cuts and perfect texture.

Tips & Variations

• For extra zing, add a teaspoon of lemon extract to the filling alongside the fresh lemon juice and zest.
• Use Greek yogurt instead of sour cream for a thicker filling with a slight tang.
• Press the crust firmly into the pan to create an even base that holds together well when sliced.
• Sprinkle a dusting of powdered sugar over the cooled bars for an elegant finish.

Storage

Store these lemon crumb bars in an airtight container in the refrigerator for up to 4 days. Bring them to room temperature or warm gently before serving. You can also freeze the bars for up to 2 months; thaw overnight in the refrigerator for best texture.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use fresh lemon juice instead of bottled?

Yes, using freshly squeezed lemon juice is recommended for the brightest, most vibrant lemon flavor.

What can I substitute for sweetened condensed milk?

Sweetened condensed milk is key for the creamy, sweet filling. As a substitute, you can try making a homemade version by simmering milk and sugar until thickened, but the texture may vary slightly.