Go Back

Lemon Oatmeal Crumble Bars

Bright and tangy lemon bars layered with a buttery oatmeal crumble for the perfect balance of sweet and tart.
Print Recipe
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 9 bars
Course: Dessert
Cuisine: American
Calories: 240
Ingredients Equipment Method Notes

Ingredients
  

Base and Crumble
  • 1.5 cups all-purpose flour
  • 1 cup rolled oats
  • 0.75 cup brown sugar packed
  • 0.5 cup granulated sugar
  • 0.5 tsp baking soda
  • 0.25 tsp salt
  • 0.75 cup unsalted butter melted
Lemon Filling
  • 1 tbsp lemon zest
  • 0.75 cup lemon juice fresh
  • 2 eggs large
  • 0.25 cup granulated sugar
  • 2 tbsp cornstarch
  • 1 tsp vanilla extract

Equipment

  • Mixing bowls
  • Baking pan
  • Wire rack
  • Whisk

Method
 

  1. Preheat oven to 350°F (175°C) and line a baking pan with parchment paper.
  2. Mix flour, oats, sugars, baking soda, and salt in a bowl.
  3. Stir in melted butter until crumbly.
  4. Press two-thirds into pan and bake 10 minutes.
  5. Whisk filling ingredients until smooth.
  6. Pour filling over crust and sprinkle remaining crumble.
  7. Bake 25–30 minutes until golden and set.
  8. Cool completely, chill, then slice and serve.

Notes

For cleaner slices, refrigerate before cutting. Add berries for variation.