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Lemon Oatmeal Crumb Bars

Buttery oat crust and crumble layered with creamy, tangy lemon filling for a bright, satisfying treat.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 12 Bars
Course: Dessert
Cuisine: American
Ingredients Method

Ingredients
  

For the Crust and Topping:
  • 1 ½ cups old-fashioned rolled oats
  • 1 ½ cups all-purpose flour
  • 1 cup brown sugar packed
  • ¾ cup unsalted butter melted
  • ½ teaspoon baking soda
  • ¼ teaspoon salt
For the Lemon Filling:
  • 1 can 14 oz sweetened condensed milk
  • ½ cup fresh lemon juice about 3–4 lemons
  • 1 tablespoon lemon zest
  • 3 large egg yolks

Method
 

  1. Mix oats, flour, sugar, baking soda, salt, and melted butter.
  2. Press two-thirds into lined 8x8 pan.
  3. Whisk condensed milk, lemon juice, zest, and yolks for filling.
  4. Pour filling over crust, top with remaining crumb.
  5. Bake at 350°F for 30–35 minutes until golden.
  6. Cool completely, refrigerate 2 hours, slice, and serve.