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Creamy Lemon Crumb Squares

Bright, tangy, and irresistibly creamy! These Lemon Crumb Squares combine a buttery oat crust with a luscious lemon filling for a perfect treat.
Prep Time15 minutes
Cook Time30 minutes
Total Time45 minutes
Course: Dessert
Cuisine: American
Keyword: Easy, Lemon, Oats, Quick, Sweet, Tangy
Servings: 9 servings

Ingredients

  • 1/2 cup unsalted butter slightly softened
  • 1 cup brown sugar lightly packed
  • 1 1/3 cup all-purpose flour
  • 1 cup old-fashioned oats
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 can sweetened condensed milk 14 ounce
  • 1/3 cup lemon juice freshly squeezed is best
  • 1 lemon zest of 1 lemon

Instructions

  • Preheat your oven to 350°F (175°C) to ensure even baking and a golden finish.
  • Grease a 9x9 inch baking pan with butter or line it with parchment paper for easy removal.
  • In a large mixing bowl, whisk together the softened unsalted butter and brown sugar until light and fluffy. Add the all-purpose flour, old-fashioned oats, baking powder, and salt. Stir until just combined to create a crumbly texture.
  • Press about two-thirds of the oat mixture firmly into the bottom of the prepared baking pan to form the base.
  • In a separate bowl, whisk together the sweetened condensed milk, lemon juice, and lemon zest until smooth to make the creamy lemon filling.
  • Pour the lemon filling evenly over the oat crust in the pan. Crumble the remaining oat mixture over the top as a crumb topping.
  • Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and the filling is set.
  • Remove from oven and cool in the pan for at least 30 minutes. Then refrigerate until completely chilled before serving.
  • Cut into squares or bars and serve cold or at room temperature. Enjoy the burst of citrusy flavor!

Equipment

  • 9x9 inch baking pan
  • Mixing Bowls
  • Whisk
  • Measuring Cups and Spoons
  • Rubber spatula
  • Oven mitts

Notes

  • Use whole wheat flour instead of all-purpose for added fiber and nutrition.
  • Replace some brown sugar with honey or maple syrup for a natural sweetness.
  • Chill the squares thoroughly to allow the filling to set properly.
  • Avoid overmixing the oat mixture to keep the crust tender and crumbly.
  • Freeze leftovers wrapped individually for up to 3 months; thaw overnight in the refrigerator before serving.