Lemon Oatmeal Crumble Bars

If you’re looking for a dessert that’s both refreshing and comforting, let me introduce you to my treasured Lemon Oatmeal Crumble Bars. These delightful treats combine a buttery oatmeal crust with a smooth, creamy lemon filling and a generous crumble topping. They are perfect for any occasion—whether it’s a busy weeknight craving or a family gathering where you want to impress without spending all day in the kitchen!

What makes these bars so special is the bright, tangy flavor of lemon that dances beautifully with the wholesome oats. Trust me; once you take a bite, you’ll see why this recipe has become a staple in my home!

Why You’ll Love This Recipe

  • Quick to make: With just 15 minutes of prep time, you can whip these up in no time.
  • Family-friendly: Everyone loves these bars—from kids to adults! They are sure to be a hit at your next gathering.
  • Make-ahead option: Bake them ahead of time, and they store wonderfully in the fridge. Perfect for those busy weeks!
  • Deliciously tangy: The fresh lemon flavor gives these bars an irresistible zest that will brighten your day.
Lemon

Ingredients You’ll Need

Let’s gather some simple and wholesome ingredients to make our Lemon Oatmeal Crumble Bars. These items are likely already in your pantry or easy to find in your local grocery store!

For the Crust and Topping

  • 1 ½ cups rolled oats
  • 1 cup all-purpose flour
  • ¾ cup brown sugar
  • ½ cup unsalted butter, softened
  • ½ teaspoon baking soda
  • ¼ teaspoon salt

For the Lemon Filling

  • 1 cup fresh lemon juice
  • Zest from 2 lemons
  • ¾ cup granulated sugar
  • 2 tablespoons cornstarch
  • 2 tablespoons water

Variations

This recipe is wonderfully flexible! Here are a few ideas to customize your Lemon Oatmeal Crumble Bars:

  • Add some berries: Mix in fresh blueberries or raspberries for an extra fruity twist!
  • Switch up the citrus: Try using lime juice instead of lemon for a zesty change.
  • Top with nuts: Sprinkle chopped almonds or walnuts on top of the crumble for added crunch.
  • Use gluten-free options: Substitute regular flour with gluten-free flour for a delightful gluten-free treat.

How to Make Lemon Oatmeal Crumble Bars

Step 1: Prepare the Crust

Start by preheating your oven to 350°F (175°C). In a large bowl, mix together the rolled oats, flour, brown sugar, baking soda, and salt. Add in the softened butter and combine until you have a crumbly mixture. This crust is the foundation of our bars—it holds everything together while adding that delicious buttery flavor.

Step 2: Press into Pan

Take about two-thirds of your oat mixture and press it firmly into an ungreased 9×13-inch baking dish. Make sure it’s even across the bottom; this will create a solid base for our creamy filling. Reserve the remaining crumble mix for topping later!

Step 3: Make the Lemon Filling

In another bowl, whisk together the fresh lemon juice, lemon zest, granulated sugar, cornstarch, and water until smooth. Pour this luscious mixture over your pressed oat crust. The citrusy aroma will fill your kitchen and make everyone curious about what you’re baking!

Step 4: Add Topping and Bake

Sprinkle the reserved crumble mixture evenly over the lemon filling. Bake in your preheated oven for about 38 minutes or until golden brown on top. This step is crucial as it gives our bars their signature look and texture!

Step 5: Cool and Serve

Once baked, allow the bars to cool completely in the pan before slicing them into squares. This cooling period helps everything set nicely so you can enjoy clean cuts when serving. I recommend sharing these delightful Lemon Oatmeal Crumble Bars with friends or family—they’re too good not to share! Enjoy!

Pro Tips for Making Lemon Oatmeal Crumble Bars

Creating the perfect Lemon Oatmeal Crumble Bars is a delightful process, and a few handy tips can make all the difference!

  • Use fresh lemons: Freshly squeezed lemon juice enhances the flavor of your filling, giving it that bright, zesty kick that bottled juice simply can’t match.

  • Chill the filling: Allowing your lemon filling to cool slightly before spreading it over the crust will help prevent it from mixing in too much, ensuring distinct layers in your bars.

  • Don’t skip the chilling step: Letting your bars cool completely before cutting them into squares helps maintain their shape and makes for cleaner edges. This makes them look as good as they taste!

  • Experiment with oats: Feel free to use a mix of rolled and quick oats for varied texture in the crumble topping. It adds an extra bite and keeps things interesting.

  • Add a pinch of salt: A small pinch of salt in both the crust and filling can elevate the flavors, balancing out the sweetness of the dessert with a hint of savory goodness.

How to Serve Lemon Oatmeal Crumble Bars

These delightful bars are versatile enough to serve at any gathering or enjoy as a sweet afternoon snack. Here are some ideas on how to present them beautifully!

Garnishes

  • Powdered sugar: A light dusting of powdered sugar on top adds an elegant touch and enhances the visual appeal of your bars.
  • Fresh berries: Topping your bars with fresh berries like blueberries or raspberries not only adds color but also introduces another layer of flavor that pairs beautifully with lemon.

Side Dishes

  • Vanilla coconut yogurt: A scoop of creamy vanilla coconut yogurt provides a luscious contrast to the tangy lemon bars and makes for a delightful pairing.
  • Herbal tea: Serve these bars alongside a cup of soothing herbal tea, such as chamomile or mint, which complements their bright flavors perfectly.
  • Fruit salad: A refreshing fruit salad made with seasonal fruits balances out the richness of the crumble bars while adding a burst of freshness.
  • Lemonade: For those warm days, a cold glass of homemade lemonade will enhance the lemony goodness and create a refreshing experience.

With these serving suggestions and tips, your Lemon Oatmeal Crumble Bars will be an absolute hit at any occasion! Enjoy baking and sharing this delicious treat!

Lemon

Make Ahead and Storage

These Lemon Oatmeal Crumble Bars are wonderful for meal prep! You can easily make them ahead of time and enjoy them throughout the week. Here’s how to store, freeze, and reheat your delicious bars.

Storing Leftovers

  • Allow the bars to cool completely before storing.
  • Cut them into squares and place in an airtight container.
  • Keep at room temperature for up to 3 days or refrigerate for up to a week.

Freezing

  • To freeze, wrap each bar individually in plastic wrap or foil.
  • Place wrapped bars in a freezer-safe container or zip-top bag.
  • They can be frozen for up to 3 months. Just be sure to label with the date!

Reheating

  • To enjoy warm bars, preheat your oven to 350°F (175°C).
  • Place the desired number of bars on a baking sheet.
  • Heat for about 8-10 minutes until warmed through.

FAQs

Here are some common questions about making Lemon Oatmeal Crumble Bars that might help you out!

Can I use other fruits instead of lemon?

Absolutely! While this recipe features lemon, you can substitute it with other fruits like blueberries or raspberries for a delightful twist.

How do I know when my Lemon Oatmeal Crumble Bars are done baking?

The edges should be golden brown, and the center should be set yet slightly jiggly. It will firm up as it cools!

Are Lemon Oatmeal Crumble Bars gluten-free?

You can make these bars gluten-free by using certified gluten-free oats and flour. They will still taste delicious!

Can I add nuts or seeds to the crumble topping?

Yes! Feel free to add chopped nuts like almonds or walnuts, or even seeds like sunflower seeds for extra crunch and flavor.

How do I store leftover Lemon Oatmeal Crumble Bars?

Store any leftovers in an airtight container at room temperature for up to 3 days or refrigerate them for longer freshness.

Final Thoughts

I hope you find joy in making these Lemon Oatmeal Crumble Bars! They’re not just a treat; they bring a burst of sunshine to any day. Whether it’s a family gathering or just a cozy evening at home, these bars are sure to please. Enjoy every bite, and don’t hesitate to share your experience with me—I’d love to hear how they turned out!

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Lemon Oatmeal Crumble Bars

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Indulge in the delightful Lemon Oatmeal Crumble Bars that perfectly balance refreshing lemon flavor with a buttery oatmeal crust. These bars are not just a dessert; they are a versatile treat suitable for any occasion—be it a casual weeknight snack or a festive gathering. The creamy lemon filling, combined with the crunchy crumble topping, creates a texture that is both satisfying and irresistible.

  • Author: Eleanor
  • Prep Time: 15 minutes
  • Cook Time: 38 minutes
  • Total Time: 53 minutes
  • Yield: Approximately 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 1 ½ cups rolled oats
  • 1 cup all-purpose flour
  • ¾ cup brown sugar
  • ½ cup unsalted butter, softened
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
  • 1 cup fresh lemon juice
  • Zest from 2 lemons
  • ¾ cup granulated sugar
  • 2 tablespoons cornstarch
  • 2 tablespoons water

Instructions

  1. Preheat the oven to 350°F (175°C). In a bowl, mix rolled oats, flour, brown sugar, baking soda, and salt. Incorporate softened butter until crumbly.
  2. Press two-thirds of the oat mixture into a greased 9×13-inch baking dish.
  3. In another bowl, whisk fresh lemon juice, zest, granulated sugar, cornstarch, and water until smooth. Pour over the crust.
  4. Sprinkle remaining crumble mixture on top and bake for about 38 minutes or until golden brown.
  5. Allow cooling completely before slicing into squares.

Nutrition

  • Serving Size: 1 bar (60g)
  • Calories: 180
  • Sugar: 10g
  • Sodium: 80mg
  • Fat: 8g
  • Saturated Fat: 5g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 2g
  • Protein: 2g
  • Cholesterol: 15mg

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