Lemon Oatmeal Crumble Bars
why make this recipe
Lemon Oatmeal Crumble Bars are a delightful combination of tart and sweet flavors, making them an irresistible treat for any occasion. The balance between the buttery oat crumble and the zesty lemon filling creates a tantalizing taste experience. Not only are these bars delicious, but they also bring a touch of freshness and brightness to your dessert table. They are perfect for a summer picnic, a cozy evening at home, or as a snack to brighten your day. Plus, they are easy to prepare, allowing you to whip up a batch in no time!
how to make Lemon Oatmeal Crumble Bars
Making Lemon Oatmeal Crumble Bars is a straightforward process that requires only a handful of ingredients. Follow these simple steps to create your own batch of these delightful bars:
Ingredients:
- 1 cup rolled oats
- 1 cup all-purpose flour
- 1/2 cup brown sugar
- 1/2 cup granulated sugar
- 1/2 cup butter, softened
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- Zest of 1 lemon
- 1/2 cup lemon juice
- 2 tablespoons cornstarch
Directions:
- Preheat your oven to 350°F (175°C). Grease a 9×9 inch baking dish.
- In a bowl, combine oats, flour, brown sugar, granulated sugar, baking powder, and salt. Mix in the softened butter until crumbly.
- Press half of this mixture into the bottom of the baking dish to form the crust.
- In another bowl, mix together lemon juice, cornstarch, and lemon zest until well combined. Pour this lemon mixture over the crust.
- Crumble the remaining oat mixture on top of the lemon layer.
- Bake for 30-35 minutes until the top is golden brown.
- Allow to cool before cutting into bars and serving.
how to serve Lemon Oatmeal Crumble Bars
These scrumptious bars can be served warm or at room temperature, making them versatile for any occasion. For an extra special touch, serve them with a dollop of whipped cream or a scoop of vanilla ice cream on the side. You can also dust them with powdered sugar for an elegant presentation. These bars make a delightful dessert, a satisfying snack, or a bright addition to a brunch spread.
how to store Lemon Oatmeal Crumble Bars
To keep your Lemon Oatmeal Crumble Bars fresh, store them in an airtight container at room temperature for up to 3 days. If you wish to keep them longer, you can refrigerate them for up to a week. For even greater longevity, freeze the bars for up to 3 months. Just be sure to wrap them tightly in plastic wrap or aluminum foil before placing them in a freezer bag.
tips to make Lemon Oatmeal Crumble Bars
- Ensure your butter is softened, as it will blend more easily into the dry ingredients, creating a better crumble texture.
- For a stronger lemon flavor, you can increase the lemon zest and juice according to your taste preferences.
- If you prefer a sweeter bar, consider adding an extra tablespoon of granulated sugar to the lemon filling mix.
- Make sure to let the bars cool completely before cutting them to ensure they hold their shape.
variation
Feel free to experiment with this recipe by adding different fruits. You can swap out the lemon for lime for a tangy twist, or mix in fresh berries like blueberries or raspberries into the lemon filling for added flavor and color. Nuts such as walnuts or pecans can also be incorporated into the crumble for a delightful crunch.
FAQs
Can I make these bars gluten-free?
Yes! You can substitute the all-purpose flour with a gluten-free flour blend and ensure that the oats are certified gluten-free.
How can I make these bars vegan?
To make these bars vegan, substitute the butter with coconut oil or a vegan butter alternative, and use a flax egg or unsweetened applesauce instead of the butter.
Can I prepare the mixture ahead of time?
Absolutely! You can prepare the crumble mixture and the lemon filling separately and store them in the refrigerator the night before. When you’re ready, simply assemble and bake them!
Lemon Oatmeal Crumble Bars

Ingredients
For the Crust and Topping
- 1 cup rolled oats Old-fashioned oats work best
- 1 cup all-purpose flour Can be substituted with gluten-free flour
- 1/2 cup brown sugar
- 1/2 cup granulated sugar Can be adjusted for sweetness
- 1/2 cup butter, softened Ensure butter is softened for easier mixing
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
For the Lemon Filling
- Zest of 1 lemon Increase for a stronger lemon flavor
- 1/2 cup lemon juice
- 2 tablespoons cornstarch
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking dish.
- In a bowl, combine oats, flour, brown sugar, granulated sugar, baking powder, and salt. Mix in the softened butter until crumbly.
- Press half of this mixture into the bottom of the baking dish to form the crust.
- In another bowl, mix together lemon juice, cornstarch, and lemon zest until well combined. Pour this lemon mixture over the crust.
- Crumble the remaining oat mixture on top of the lemon layer.
Baking
- Bake for 30-35 minutes until the top is golden brown.
- Allow to cool before cutting into bars and serving.
