These Lemon Crumb Squares are a delightful treat that combines a soft, tangy lemon filling with layers of buttery crumble. Perfect for picnics, potlucks, or even a cozy night in, these bars bring the sunshine with every bite. Their unique balance of sweet and citrus flavors makes them irresistible and ideal for any occasion.
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, you can whip these up in no time.
- Perfect for Any Occasion: Whether it’s a family gathering or a casual afternoon snack, these squares fit right in.
- Deliciously Tangy: The fresh lemon juice and zest provide a refreshing burst of flavor that brightens your day.
- Versatile Serving Options: Serve them as is, or add a dusting of powdered sugar for an elegant touch.
- Make Ahead Friendly: These bars store well, making them great for meal prep or satisfying sweet cravings later.
Tools and Preparation
Before diving into the recipe, gather the essential tools that will make your cooking experience smoother and more enjoyable.
Essential Tools and Equipment
- 8×8-inch baking pan
- Parchment paper or foil
- Mixing bowls
- Whisk
- Measuring cups and spoons
Importance of Each Tool
- 8×8-inch baking pan: This size is perfect for creating thick bars that hold their shape well.
- Parchment paper or foil: Lining your pan makes removing the bars easy without sticking.
- Mixing bowls: Having multiple bowls allows you to prepare different components efficiently.
- Whisk: A whisk is great for combining wet ingredients smoothly without lumps.
Ingredients
These soft and tangy Lemon Crumb Bars feature a luscious lemon filling between layers of buttery crumble, creating the perfect balance of sweet and citrusy flavors.
For the Crust
- 1 cup all-purpose flour
- 1 cup old-fashioned oats
- ¼ teaspoon salt
- ¾ teaspoon baking soda
- 10 tablespoons unsalted butter, melted
- ½ cup packed light brown sugar
- 1 teaspoon pure vanilla extract
For the Filling
- 1 (14 oz) can sweetened condensed milk
- 2 tablespoons sour cream or plain yogurt
- 1 large egg yolk
- ¼ cup freshly squeezed lemon juice
- 1 heaping tablespoon finely grated lemon zest
- ½ teaspoon vanilla extract
How to Make Lemon Crumb Squares
Step 1: Preheat the Oven
Heat your oven to 350°F. Prepare an 8×8-inch pan by lining it with parchment paper or foil, allowing some overhang. Spray it lightly with nonstick spray.
Step 2: Prepare the Crust Mixture
In a mixing bowl, combine:
1 cup all-purpose flour
1 cup old-fashioned oats
¼ teaspoon salt
¾ teaspoon baking soda
Mix these dry ingredients until they are well blended.
Step 3: Combine Wet Ingredients
In another bowl, whisk together:
10 tablespoons melted unsalted butter
½ cup packed light brown sugar
1 teaspoon pure vanilla extract
Once combined, stir in the dry mixture from Step 2 until just combined.
Step 4: Assemble the Base
Set aside ¾ cup of the dough for topping. Press the remaining dough evenly into the bottom of your prepared pan. Bake this base for about 10 minutes until lightly golden.
Step 5: Make the Lemon Filling
In a separate bowl, whisk together:
1 (14 oz) can sweetened condensed milk
2 tablespoons sour cream (or yogurt)
1 large egg yolk
¼ cup freshly squeezed lemon juice
1 heaping tablespoon finely grated lemon zest
½ teaspoon vanilla extract
Ensure everything is mixed thoroughly until smooth.
Step 6: Bake Again
Pour this lemon filling over your baked crust. Spread it gently to cover completely. Crumble the reserved dough on top. Return to the oven and bake for an additional 17–20 minutes until golden and set.
Step 7: Cool & Serve
Let your Lemon Crumb Squares cool completely in the pan before slicing into squares. Enjoy this refreshing treat!
How to Serve Lemon Crumb Squares
Lemon Crumb Squares are delightful treats that can be enjoyed in various ways. Whether you’re hosting a gathering or simply craving something sweet, these bars can elevate any occasion.
With Fresh Berries
- Serve the squares with a side of mixed fresh berries like strawberries, blueberries, and raspberries for a refreshing contrast to the tangy lemon.
A Dusting of Powdered Sugar
- Lightly sprinkle powdered sugar on top before serving for an elegant touch and added sweetness.
Whipped Cream
- Add a dollop of whipped cream on top for a creamy texture that complements the tartness of the lemon filling.
Iced Tea or Lemonade Pairing
- Pair these squares with a chilled glass of iced tea or lemonade to enhance the citrus flavors and keep things refreshing.
Ice Cream Scoop
- Serve warm with a scoop of vanilla ice cream on top, creating a deliciously melty combination of flavors.
How to Perfect Lemon Crumb Squares
To achieve the best results with your Lemon Crumb Squares, follow these handy tips.
Use fresh lemons: Freshly squeezed lemon juice and zest enhance flavor significantly compared to bottled versions.
Chill before cutting: Allow the squares to cool completely in the fridge. This helps them set better, making slicing easier and cleaner.
Don’t overbake: Keep an eye on baking times; overbaking can lead to dry bars. They should be golden but still soft when you take them out.
Experiment with toppings: Try adding nuts or coconut flakes to the crumble for added texture and flavor variations.
Best Side Dishes for Lemon Crumb Squares
Lemon Crumb Squares are versatile and can be complemented by various side dishes. Here are some great options to serve alongside your dessert.
Fruit Salad: A light fruit salad made with seasonal fruits offers a refreshing palate cleanser after rich desserts.
Greek Yogurt Parfait: Layer Greek yogurt with granola and berries for a nutritious side that balances sweetness.
Cheese Platter: A selection of soft cheeses pairs well with the zesty flavors, providing a savory contrast.
Green Salad: A simple green salad dressed with vinaigrette adds freshness and balances sweetness.
Chocolate Mousse: Rich chocolate mousse can create an indulgent dessert experience when served alongside lemon bars.
Mini Tarts: Offer small fruit tarts as additional options to complement the citrus flavors of the Lemon Crumb Squares.
Common Mistakes to Avoid
Making Lemon Crumb Squares can be fun, but some common mistakes can ruin your delightful dessert. Here are a few pitfalls to watch for.
- Skipping the chilling time: Not letting the bars cool completely can lead to messiness when slicing. Always allow them to cool thoroughly before serving.
- Using bottled lemon juice: Bottled lemon juice lacks the fresh flavor needed for this recipe. Always use freshly squeezed lemon juice for the best taste.
- Overbaking the crust: Baking the crust too long can cause it to become hard and dry. Keep an eye on it, and aim for a light golden color.
- Ignoring ingredient temperatures: If your butter or eggs are too warm or cold, they may not blend well. Allow ingredients like butter to reach room temperature for better results.
- Not measuring ingredients accurately: Precision is key in baking. Use proper measuring cups and spoons to ensure you add just the right amounts.
Storage & Reheating Instructions
Refrigerator Storage
- Store Lemon Crumb Squares in an airtight container for up to 5 days.
- Place parchment paper between layers if stacking them.
Freezing Lemon Crumb Squares
- Wrap individual squares tightly in plastic wrap, then place them in a freezer bag.
- They will last up to 3 months in the freezer.
Reheating Lemon Crumb Squares
- Oven: Preheat to 350°F, place squares on a baking sheet covered with foil, and heat for about 10 minutes.
- Microwave: Heat each square for about 15-20 seconds until warm but not hot.
- Stovetop: Place squares in a skillet over low heat, cover with a lid, and warm for about 5 minutes.
Frequently Asked Questions
Here are some common questions about making Lemon Crumb Squares that might help you out!
Can I make Lemon Crumb Squares gluten-free?
Yes! Substitute all-purpose flour with a gluten-free flour blend. Ensure other ingredients are also gluten-free.
What can I substitute for sour cream?
Greek yogurt works as an excellent replacement for sour cream in this recipe.
How can I customize my Lemon Crumb Squares?
You can add berries or nuts to the filling or topping for extra flavor and texture.
Can I use different citrus fruits instead of lemons?
Absolutely! Try using limes or oranges for a unique twist on these crumb squares.
Final Thoughts
These Lemon Crumb Squares are a perfect blend of sweet and tangy flavors that everyone will love. They are versatile enough to customize with your favorite additions, making them a delightful treat for any occasion. Don’t hesitate to try this recipe; it’s sure to bring joy and satisfaction!
Lemon Crumb Squares
Lemon Crumb Squares are a delightful dessert that beautifully marries a tangy lemon filling with a buttery crumble topping. These bars are perfect for any occasion, whether it’s a summer picnic or a cozy night in. Each bite delivers a refreshing burst of citrus flavor, making them an irresistible treat for lemon lovers. With their easy preparation and vibrant taste, these squares are sure to brighten your day and impress your guests.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 16 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 cup all-purpose flour
- 1 cup old-fashioned oats
- ¼ teaspoon salt
- ¾ teaspoon baking soda
- 10 tablespoons unsalted butter, melted
- ½ cup packed light brown sugar
- 1 teaspoon pure vanilla extract
- 1 (14 oz) can sweetened condensed milk
- 2 tablespoons sour cream or plain yogurt
- 1 large egg yolk
- ¼ cup freshly squeezed lemon juice
- 1 heaping tablespoon finely grated lemon zest
- ½ teaspoon vanilla extract
Instructions
- Preheat the oven to 350°F and line an 8×8-inch baking pan with parchment paper.
- In a bowl, mix flour, oats, salt, and baking soda. In another bowl, combine melted butter, brown sugar, and vanilla extract. Stir the dry ingredients into the wet mixture until just combined.
- Reserve ¾ cup of dough for topping and press the rest into the pan. Bake for 10 minutes until lightly golden.
- Prepare the filling by whisking together sweetened condensed milk, sour cream, egg yolk, lemon juice, lemon zest, and vanilla until smooth.
- Pour the filling over the crust and sprinkle reserved dough on top. Bake for an additional 17–20 minutes until golden.
- Allow to cool completely before cutting into squares.
Nutrition
- Serving Size: 1 square (50g)
- Calories: 200
- Sugar: 12g
- Sodium: 140mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 26g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 35mg
