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–+ servings
two blueberry lemon bars stacked on a plate.
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5 from 2 votes

Blueberry Lemon Bars

These Blueberry Lemon Bars bring together the rich flavors of luscious blueberries and tart lemon. Best of all, they only take minutes to throw together – no mixing bowl or measuring cups required!
Prep Time5 minutes
Cook Time45 minutes
Total Time50 minutes
Course: Desserts
Cuisine: American
Servings: 9
Calories: 349kcal
Author: Kelly Bloom
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Equipment

  • Ceramic 9x13 Casserole Dish

Ingredients

  • 2¼ cup Blueberries fresh, washed. Reserve ¼ cup for topping.
  • 1 Lemon Cake mix 15.25 oz
  • 4 oz Butter melted

Optional Icing

  • ½ cup powdered sugar
  • 3 teaspoon lemon juice
US Customary - Metric

Instructions

  • Preheat the oven to 350 degrees F. Spray a 9x13 inch casserole or baking dish with non stick cooking spray.
  • Wash the fresh blueberries and then spread them out in the bottom of the baking dish in a single layer. Be sure to reserve ¼ cup of the blueberries for the topping.
    PRO TIP: Make sure to only make a single layer of blueberries. This will ensure the cake mix is more cookie texture for cake bars.
    2¼ cup Blueberries
  • Sprinkle the lemon cake mix evenly over the top of the blueberries.
    1 Lemon Cake mix
  • Melt the butter on the defrost option in the microwave (this melts it evenly without splattering) and drizzle over the top of the cake mix.
    4 oz Butter
  • Spread the reserved blueberries over the top of the butter topped cake mix.
  • Bake in the preheated oven for 40-45 minutes, or until golden brown and bubbly on top. Allow to cool for 20 minutes before cutting into bars and serving.

Optional Icing

  • Mix ½ cup powdered sugar with 2-3 tablespoons of lemon juice and drizzle on top of lemon bars.
    ½ cup powdered sugar, 3 tsp lemon juice

Notes

  • Fresh is Best: For the best flavor and texture, use fresh blueberries.
  • Cool Before Cutting: Allow the baked bars to cool completely (or at least slightly) before attempting to cut them. This helps them set properly and hold their shape, preventing crumbling.
  • Optional Lemon Glaze: For an extra touch of sweetness and lemon zing, drizzle with a simple glaze. Mix ½ cup powdered sugar with 2-3 tablespoons of lemon juice and drizzle over the cooled bars.
  • Don't Overbake: Keep an eye on the bars as they bake. They are done when the edges are lightly golden and the center is set, but still slightly soft. Overbaking can lead to a dry texture.

Nutrition

Calories: 349kcal | Carbohydrates: 59g | Protein: 3g | Fat: 12g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 27mg | Sodium: 500mg | Potassium: 60mg | Fiber: 2g | Sugar: 35g | Vitamin A: 335IU | Vitamin C: 4mg | Calcium: 127mg | Iron: 1mg
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