3 Ingredient Lemon Bars (Easy Cake Mix Recipe)
3-Ingredient Lemon Bars (Easy Cake Mix Recipe)
These 3-Ingredient Lemon Bars are the kind of dessert you’ll want to keep in your recipe collection for busy days. They’re soft, sweet, full of bright lemon flavor, and finished with a dusting of powdered sugar. Best of all, you only need three ingredients and a few minutes of preparation.
Instead of making a traditional shortbread crust and lemon filling from scratch, this easy recipe uses a box of angel food cake mix and canned lemon pie filling. Mix them together, bake, and finish with powdered sugar once the bars have cooled.
They’re wonderful for spring gatherings, summer potlucks, Easter celebrations, or whenever you’re craving something lemony without spending much time in the kitchen.
Why You’ll Love These Easy Lemon Bars
There are plenty of reasons to make this simple lemon dessert.
- Just three ingredients: No butter, eggs, or oil to measure separately.
- Quick preparation: The batter comes together in about five minutes.
- No separate crust: Everything bakes together in one pan.
- Soft, tender texture: The finished bars are more cake-like than traditional lemon bars, with a slightly chewy, moist center.
- Great for sharing: A 9×13-inch pan makes enough for a family gathering or potluck.
And because the recipe starts with convenient pantry ingredients, it’s easy to put together when you need a last-minute dessert.
Ingredients for 3-Ingredient Lemon Bars
You only need three simple ingredients for this recipe.
Angel Food Cake Mix — 1 Box (16 oz)
Use a one-step angel food cake mix that requires only water when prepared according to its package directions.
The dry mix provides the structure for these bars. Don’t substitute regular yellow or white cake mix, because those mixes have different ingredients and baking requirements.
Lemon Pie Filling — 1 Can (21 oz)
Prepared lemon pie filling provides the lemon flavor, sweetness, and moisture.
Use the entire can, including all the filling. You don’t need to add water, milk, or any other liquid.
Powdered Sugar — ¼ Cup
A light dusting of powdered sugar gives the bars a pretty finish and adds a little extra sweetness.
Wait until the bars have cooled before adding it so the sugar doesn’t immediately dissolve into the surface.
How to Make 3-Ingredient Lemon Bars
This easy lemon bar recipe requires one mixing bowl and a 9×13-inch baking dish.
Step 1: Preheat the Oven
Preheat your oven to 350°F.
Lightly grease a 9×13-inch baking dish with nonstick cooking spray. You can also line the dish with parchment paper to make removing the bars easier.
Step 2: Combine the Ingredients
Pour the entire box of dry angel food cake mix into a large mixing bowl.
Add the full can of lemon pie filling.
Do not prepare the cake mix according to the directions on the box. For this recipe, you’re using the dry mix directly.
Step 3: Mix Gently
Using a spatula, gently fold the cake mix and lemon filling together until no large pockets of dry mix remain.
The batter may become thick, airy, and slightly foamy. That’s normal for this type of cake mix.
Avoid stirring more than necessary.
Step 4: Spread Into the Pan
Transfer the lemon mixture to your prepared baking dish.
Spread it evenly with a spatula, making sure the batter reaches the corners.
The surface doesn’t need to be perfectly smooth.
Step 5: Bake the Lemon Bars
Place the pan on the center rack of your preheated oven.
Bake for approximately 20–25 minutes, or until the top is lightly golden and the center appears set.
The surface should spring back gently when touched. If the center still looks wet, continue baking for a few minutes and check again.
Step 6: Cool Completely
Remove the baking dish from the oven and place it on a cooling rack.
Allow the bars to cool completely before cutting.
These bars are especially soft when warm, so giving them enough time to cool helps them hold their shape.
Step 7: Add Powdered Sugar
Once the bars have cooled, sift the powdered sugar evenly over the top.
Cut into squares using a sharp knife and serve.
For cleaner slices, wipe the knife between cuts.
Tips for Making the Best Lemon Bars
Choose the right cake mix. A one-step angel food cake mix is important for this shortcut recipe. Regular cake mix won’t produce the same result.
Don’t add extra liquid. The lemon pie filling provides the moisture needed for the batter.
Mix just until combined. Gentle folding helps maintain the airy texture of the batter.
Watch the baking time. Ovens vary, so start checking around the 20-minute mark. The center should be set rather than wet.
Let the bars cool before slicing. Cutting too early can cause the soft centers to fall apart.
Dust just before serving. Powdered sugar can absorb moisture during storage, so a fresh dusting gives the prettiest appearance.
Easy Variations to Try
Once you’ve made these lemon bars, you can experiment with a few simple variations.
Lemon Blueberry Bars: Gently fold ½ cup of fresh, dry blueberries into the batter before baking. Additional moisture may affect the baking time.
Cherry Cake Mix Bars: Replace the lemon pie filling with a 21-ounce can of cherry pie filling for a fruity variation.
Apple Cinnamon Bars: Try apple pie filling with a little cinnamon for a fall-inspired dessert.
Extra Lemon Flavor: Add a small amount of finely grated lemon zest if you prefer a stronger citrus flavor.
These variations change the original three-ingredient recipe, but they’re fun ways to use the same basic method.
How to Store Lemon Bars
Store completely cooled lemon bars in an airtight container in the refrigerator for up to 4 days.
Separate layers with parchment paper to prevent sticking. They’re delicious served chilled or after sitting at room temperature briefly.
For longer storage, freeze the bars without powdered sugar. Wrap them individually and place them in a freezer-safe container for up to 3 months.
Thaw in the refrigerator overnight and dust with fresh powdered sugar before serving.
Frequently Asked Questions
Can I use regular cake mix instead of angel food cake mix?
No. This recipe relies on the ingredients in one-step angel food cake mix. Regular yellow or white cake mix needs a different combination of liquids, eggs, and fat.
Why are my lemon bars sticky on top?
These bars naturally have a moist, slightly tacky surface because of the angel food cake mix and pie filling. Let them cool completely before slicing.
Can I make these lemon bars ahead of time?
Yes! You can prepare them the day before serving. Keep them refrigerated and add the powdered sugar shortly before serving.
Are these the same as traditional lemon bars?
Not exactly. Traditional lemon bars usually have a buttery shortbread crust and a lemon custard layer. This shortcut version has a softer, more cake-like texture.
Can I use a 9×9-inch pan?
A 9×9-inch pan will produce thicker bars and may require additional baking time. A 9×13-inch pan is recommended for the original recipe.
A Simple Lemon Dessert Worth Making
These 3-Ingredient Lemon Bars are a convenient way to enjoy a sweet, tangy dessert without making everything from scratch.
With a box of angel food cake mix, a can of lemon pie filling, and a little powdered sugar, you can have a pan of soft lemon treats ready for your next family gathering.
They’re simple, budget-friendly, and especially nice when you’re short on time but still want something homemade.
Easy 3-Ingredient Lemon Bars
Ingredients
Method
- Preheat the oven to 350°F. Grease a 9×13-inch baking dish or line it with parchment paper.
- Add the dry angel food cake mix and lemon pie filling to a large mixing bowl.
- Gently fold the ingredients together until no large pockets of dry cake mix remain.
- Spread the batter evenly into the prepared baking dish.
- Bake for 20–25 minutes, or until the top is lightly golden and the center is set. Add a few minutes if necessary.
- Remove from the oven and let cool completely.
- Sift powdered sugar over the cooled bars.
- Cut into 16 squares and serve.
