Lemon Oatmeal Crumble Bars – Easy Dessert Recipe with Oats
Bright, tangy, and irresistibly crumbly – these lemon oatmeal bars are the perfect balance of sweet and citrus. Made with wholesome oats and a buttery crumble topping, this easy dessert recipe is ideal for family gatherings, spring parties, or a quick homemade treat. Save this recipe for your next baking day!
Equipment
- Mixing bowls
- Whisk or spatula
- Measuring cups & spoons
- 9×13-inch baking pan
- Parchment paper
- Oven
Ingredients
- 1 ½ cups rolled oats
- 1 cup all-purpose flour (or almond flour for gluten-free)
- ¾ cup brown sugar
- ½ cup melted butter (or coconut oil for vegan)
- 1 can (14 oz) sweetened condensed milk (or Greek yogurt for lighter version)
- ½ cup fresh lemon juice
- Zest of 2 lemons
- Pinch of salt
- Optional: coconut flakes, berries, or nuts for topping
Instructions
- Prepare crust: Mix oats, flour, brown sugar, melted butter, and salt. Press firmly into parchment-lined pan.
- Bake crust: Bake at 350°F (175°C) for 10–12 minutes until lightly golden.
- Make filling: Whisk condensed milk, lemon juice, and zest until smooth.
- Assemble bars: Pour filling over crust. Sprinkle reserved oat mixture (plus optional coconut flakes or berries) on top.
- Bake again: Return to oven for 20–25 minutes until filling is set and topping golden.
- Cool & slice: Cool completely, refrigerate for 1 hour, then slice into bars.
Notes
- Always use fresh lemon juice for vibrant flavor.
- Press crust firmly to avoid crumbling.
- Refrigerate before slicing for clean edges.
- Store in airtight container for 3–4 days or freeze for up to 2 months.
- Customize with berries, coconut, or nuts for creative twists.