Lime Coconut Oatmeal Crumble Bars
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These lime coconut oatmeal crumble bars are a sweet, citrusy twist on classic crumble bars, with a chewy oat and coconut base and a bright lime filling that’s creamy and just the right amount of tart. They’re easy to pull together and perfect for when you want something that feels both tropical and comforting.
More crumble bars? You’ll love these Blueberry Cream Cheese Crumble Bars, these Strawberry Cream Cheese Crumble Bars and these Peach Oatmeal Crumble Bars!
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Why You’ll Love These Bars
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The base and topping come from the same easy crumble mixture.
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Sweetened condensed milk makes the lime filling ultra creamy.
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Coconut and oats add chewy texture and a hint of tropical flavor.
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Perfect balance of tangy and sweet in every bite. Tastes like a coconut lime key lime pie, only in a bar!
If you love key lime desserts or anything with coconut and citrus, these lime oatmeal bars will hit the spot.
Ingredients You Need
Lime Coconut Oatmeal Crumble Bars Recipe
- 1/2 cup butter at room temperature
- 1 cup light brown sugar
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 cup old fashioned oats
- 1/2 cup shredded sweetened coconut
- 1 14 ounce can sweetened condensed milk
- 1/2 teaspoon vanilla extract
- 1/2 cup fresh lime juice
- 2 teaspoons lime zest
These coconut lime oatmeal bars use pantry staples and a few fresh ingredients for a dessert that looks fancy but comes together fast.
Instructions How to Make Lime Coconut Oatmeal Bars
- 1. Preheat oven to 350 degrees F. Grease a 8×8-inch baking pan and set aside.
- 2. In a large bowl, cream together butter and brown sugar. Add in flour, baking powder, and salt and mix until everything comes together in a crumbly mixture and flour is evenly distributed. Mix in oats and coconut. Mixture will be somewhat dry and sandy.
- 3. In a medium bowl, whisk together sweetened condensed milk, vanilla, lime juice, and lime zest.
- 4. Put 2 cups of the oat mixture into the bottom of prepared baking dish and press firmly into an even layer. Pour lime mixture on top and spread evenly. Crumble all remaining oat mixture over the top of the lime mixture, covering it completely.
- 5. Bake bars for 30-35 minutes, or until golden brown. Cool completely on a wire rack. Cut into squares and serve. Store remaining bars in the refrigerator.
These lime coconut dessert bars are best chilled and even better the next day.
How to Store Coconut Lime Crumble Bars
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Store bars in an airtight container in the fridge for up to 5 days.
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These bars also freeze well. Wrap them tightly in plastic and freeze for up to 2 months. Thaw in the fridge before serving.
Variations for Lime Coconut Oatmeal Crumble Bars
Use different citrus – Swap lime juice for lemon or even key lime juice for a slightly different twist. Orange zest also works well for a sweeter citrus profile.
Add a little texture – Mix chopped almonds or macadamia nuts into the crumble topping for added crunch.
Make it less sweet – Use unsweetened coconut and reduce the brown sugar in the oat mixture by ¼ cup if you prefer a more tart-forward bar.
Add a chocolate twist – Drizzle melted white chocolate over the cooled bars or fold in white chocolate chips to the topping before baking.
FAQs About Lime Coconut Dessert Bars
Can I use bottled lime juice instead of fresh?
- Fresh lime juice gives the best flavor, but bottled will work if that’s what you have. Try to use one labeled 100% juice for best results.
Can I make these lime bars gluten-free?
- Yes, use a 1-to-1 gluten-free flour substitute and be sure your oats are certified gluten-free.
How do I know when they’re done baking?
- The top should be golden brown and the edges should be set. The center may jiggle slightly but will firm up as it cools.
Do these need to be refrigerated?
- Yes, because of the sweetened condensed milk filling. Store leftovers in the fridge for best texture and safety.
These lime coconut oatmeal crumble bars are the kind of dessert that feels just fancy enough, without being complicated. The creamy lime filling and chewy coconut oat topping make a perfect pairing, and they slice beautifully for parties or simple weekday treats.
Share your homemade lime coconut bars on Pinterest, Instagram and Facebook and tag us so we can see your tropical creations!
More Lime and Coconut Recipes!
- Coconut Lime Margarita Pound Cake
- Lemon Coconut Cream Cheese Dessert
- Easy Key Lime Cheesecake Bars
- Coconut Cream Pie
- Key Lime Cheesecake Pie
- Magnolia Bakery’s Coconut Layer Cake
- Frozen Key Lime Cream Pie
Lime Coconut Oatmeal Crumble Bars
Ingredients
- ½ cup unsalted butter at room temperature
- 1 cup brown sugar
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon salt
- ½ cup old fashioned oats
- ½ cup shredded sweetened coconut
- 1 14 ounce can sweetened condensed milk
- ½ teaspoon vanilla extract
- ½ cup fresh lime juice
- 2 teaspoons lime zest
Instructions
- Preheat oven to 350 degrees F. Grease a 8×8-inch baking pan and set aside.
- In a large bowl, cream together butter and brown sugar. Add in flour, baking powder, and salt and mix until everything comes together in a crumbly mixture and flour is evenly distributed. Mix in oats and coconut. Mixture will be somewhat dry and sandy.
- In a medium bowl, whisk together sweetened condensed milk, vanilla, lime juice, and lime zest.
- Put 2 cups of the oat mixture into the bottom of prepared baking dish and press firmly into an even layer. Pour lime mixture on top and spread evenly. Crumble all remaining oat mixture over the top of the lime mixture, covering it completely.
- Bake bars for 30-35 minutes, or until golden brown. Cool completely on a wire rack. Cut into squares and serve. Store remaining bars in the refrigerator.
