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vendredi 3 juillet 2026

3-Ingredient Lemon Bars – An Easy, Bright, and Buttery Dessert Everyone Loves


If you're looking for a quick dessert that's bursting with fresh lemon flavor, these 3-Ingredient Lemon Bars are the perfect choice. Made with just a box of lemon cake mix, melted butter, and canned lemon pie filling, this simple recipe creates buttery crumb layers with a sweet and tangy lemon center that tastes like it took hours to make.

Whether you're baking for a family reunion, church potluck, holiday celebration, or weekend gathering, these easy lemon bars always disappear fast. They require minimal prep, use pantry-friendly ingredients, and deliver bakery-style flavor with almost no effort.

Why You'll Love These 3-Ingredient Lemon Bars

There are countless reasons this recipe has become a family favorite:

  • Only 3 simple ingredients

  • Ready in about 30 minutes

  • No mixer required

  • Bright, fresh lemon flavor

  • Soft buttery crumb topping

  • Perfect for potlucks and parties

  • Easy enough for beginner bakers

  • Great make-ahead dessert

These bars are proof that delicious homemade desserts don't have to be complicated.

What Are 3-Ingredient Lemon Bars?

Unlike traditional lemon bars that require homemade curd and shortbread crust, this shortcut version uses lemon cake mix to create both the crust and crumb topping.

The lemon pie filling bakes into a smooth, vibrant center while the buttery cake mixture turns golden and slightly crisp around the edges. The result is a dessert that's rich, soft, buttery, and loaded with citrus flavor.

They're ideal when you need a crowd-pleasing dessert without spending hours in the kitchen.

Ingredients

Servings: 16 bars

You'll Need

  • 1 box (15.25–16.5 ounces) lemon cake mix

  • ½ cup unsalted butter, melted

  • 1 can (21 ounces) lemon pie filling

How to Make 3-Ingredient Lemon Bars

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C).

Grease a 9×13-inch baking dish with butter or nonstick cooking spray.

Step 2: Prepare the Crumb Mixture

In a medium bowl, combine the dry lemon cake mix with the melted butter.

Stir until the mixture resembles coarse crumbs with no dry spots remaining.

Step 3: Make the Crust

Press about two-thirds of the crumb mixture evenly into the bottom of the prepared baking dish.

Use the bottom of a measuring cup or your fingertips to create an even layer.

Step 4: Add the Lemon Filling

Spread the lemon pie filling evenly over the crust.

Use the back of a spoon or an offset spatula to smooth the filling without disturbing the crust.

Step 5: Add the Crumble Topping

Sprinkle the remaining crumb mixture evenly over the lemon filling.

Leave small clumps for a beautiful crumb topping.

Do not press it down.

Step 6: Bake

Bake for 25–30 minutes, or until:

  • The topping is lightly golden

  • The filling is bubbling around the edges

  • The center is mostly set

Step 7: Cool and Slice

Allow the bars to cool completely.

For cleaner slices, refrigerate for 1–2 hours before cutting into squares.

Serve chilled or at room temperature.

Tips for Perfect Lemon Bars

Use Room-Temperature Butter

Slightly cooled melted butter mixes more evenly with the cake mix.

Chill Before Cutting

Cold lemon bars slice beautifully and hold their shape much better.

Don't Overbake

The filling should still have a slight jiggle in the center when removed from the oven.

It will continue setting as it cools.

Easy Variations

Extra Lemon Flavor

Mix into the pie filling:

  • 2 tablespoons fresh lemon juice

  • 1 teaspoon lemon zest

This creates a brighter citrus flavor.

Coconut Lemon Bars

Add:

  • ½ cup shredded coconut

to the crumb mixture before baking.

Nutty Crunch

Mix in:

  • Chopped almonds

  • Pecans

  • Walnuts

for extra texture.

Less Sweet Version

Use:

  • Yellow cake mix

  • White cake mix

instead of lemon cake mix for a milder flavor.

Dust with Powdered Sugar

Just before serving, lightly dust the bars with powdered sugar for an elegant finish.

Serving Suggestions

These lemon bars pair perfectly with:

  • Fresh strawberries

  • Blueberries

  • Raspberry sauce

  • Whipped cream

  • Vanilla ice cream

  • Hot coffee

  • Black tea

  • Iced tea

  • Fresh lemonade

They're perfect for:

  • Easter

  • Mother's Day

  • Baby showers

  • Bridal showers

  • Church potlucks

  • Summer picnics

  • Family reunions

  • Holiday dessert tables

Storage Tips

Store leftovers in an airtight container in the refrigerator for up to 5 days.

Because of the fruit filling, chilled storage helps maintain freshness and texture.

Can You Freeze Lemon Bars?

Yes.

Wrap individual bars tightly in plastic wrap and place them in a freezer-safe container.

Freeze for up to 2 months.

Thaw overnight in the refrigerator before serving.

Frequently Asked Questions

Can I use homemade lemon curd?

Yes. Homemade lemon curd can replace canned pie filling for a richer homemade version.

Can I use another pie filling?

Absolutely.

Try:

  • Blueberry

  • Cherry

  • Raspberry

  • Peach

  • Apple

using the same method.

Why should I chill the bars?

Chilling allows the filling to fully set, making the bars easier to slice and serve.

Can I make these ahead?

Yes.

These bars actually taste even better after several hours in the refrigerator.

Can I double the recipe?

Yes.

Bake in two 9×13-inch pans or one large sheet pan if serving a crowd.

Nutrition (Approximate Per Serving)

  • Calories: 220

  • Carbohydrates: 34g

  • Protein: 2g

  • Fat: 9g

  • Saturated Fat: 5g

  • Sugar: 20g

  • Sodium: 240mg

Nutritional values are estimates and may vary depending on the ingredients used.

Final Thoughts

These 3-Ingredient Lemon Bars are the perfect example of how simple ingredients can create an unforgettable dessert. The buttery crumb crust, vibrant lemon filling, and crisp golden topping combine to make a treat that's refreshing, comforting, and incredibly easy to prepare.

Whether you're bringing dessert to a family gathering, preparing treats for a church potluck, or simply satisfying a craving for something sweet and citrusy, these easy lemon bars are guaranteed to be a hit. One bite is all it takes to understand why they disappear long before the main meal is served. 

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