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Lemon Crumble Bars

These Lemon Crumble Bars features a buttery, golden crumble crust and topping with a creamy, tangy lemon filling that's perfectly sweet and refreshing. Easy to make with simple ingredients, they're the perfect dessert for spring, summer, potlucks, picnics, or anytime you're craving a bright citrus treat.
Print Recipe
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 12 Servings
Course: Dessert
Cuisine: American
Calories: 320
Ingredients Equipment Method

Ingredients
  

For the Crumble:
  • 1 Cup All-purpose flour
  • 1 Cup Oats
  • 3/4 tsp Baking soda
  • 142 g Salted butter, softened
  • 1/2 Cup Brown sugar, packed
For the Lemon Filling:
  • 1 Can Sweetened condensed milk
  • 1 tsp Pure vanilla extract
  • 2 Tbsp Sour cream
  • 1 Large Egg yolk
  • 1/4 Cup Freshly squeezed lemon juice
  • 1 Tbsp Finely grated lemon zest

Equipment

  • 1 8X8-inch baking pan

Method
 

  1. Preheat your oven to 350F (175C). Line an 8X8-inch baking pan with parchment paper and set aside.
  2. Make the Crumble: In a large bowl, whisk together the flour, oats, and baking soda.
  3. In another bowl, combine softened butter, brown sugar, and vanilla extract.
  4. Combine Wet and Dry Ingredients: Mix the wet and dry ingredients until combined. Reserve 3/4 cup of the mixture for topping. Press the rest into the prepared pan.
  5. Bake: Bake for 10 minutes.
  6. Prepare the Filling: While the crust bakes, whisk together sweetened condensed milk, sour cream, egg yolk, lemon juice, lemon zest, and vanilla until smooth.
  7. Assemble the Crust: Pour filling over baked crust and sprinkle reserved crumble evenly over the filling.
  8. Bake: Bake for another 17 to 20 minutes until golden.
  9. Cool: Cool completely before slicing into squares.