Bright, Light, and Surprisingly Satisfying

When I wanted a lemon treat that felt as light as a spring morning, I started trimming and swapping until these bars finally clicked. Learn more about DanyRecipes and why I love lighter bakes that never skimp on flavor.

These healthy lemon bars use a short list of clean ingredients for a tangy, tender square that keeps portions and sugar in check.

Why These Bars Stay Light

The crust is made from oat flour and a little applesauce in place of most of the butter, while the filling gets its creaminess from eggs and a touch of Greek yogurt. Sweetening with a modest amount of maple syrup keeps the bars bright and tangy instead of cloying.

This lemon bars recipe fits an 8×8 pan and cuts into 16 small squares, so each portion stays light. It is one of my favorite lemon desserts for everyday snacking, and it pairs nicely with my chewy thumbprint lemon curd cookies when you want a bigger treat on the side.

Clean Pantry Ingredients

For the crust:

• 1 1/2 cups oat flour (blend old fashioned oats until fine)
• 2 tablespoons maple syrup
• 3 tablespoons unsweetened applesauce
• 2 tablespoons coconut oil, melted
• 1/4 teaspoon fine salt

For the lemon filling:

• 3 large eggs, at room temperature
• 1/3 cup maple syrup
• 1/3 cup fresh lemon juice (about 2 lemons), strained
• 1 tablespoon lemon zest, finely grated
• 1/4 cup plain nonfat Greek yogurt
• 2 tablespoons oat flour
• Pinch of salt

Light Steps to Lemon Bars

STEP 1

Heat the oven to 350°F and line an 8×8 pan with parchment, leaving an overhang on two sides.

STEP 2

Stir the oat flour, maple syrup, applesauce, melted coconut oil, and salt until a soft, slightly sticky dough forms.

STEP 3

Press the dough firmly into the pan with damp fingertips and bake for 12 to 15 minutes until lightly golden.

STEP 4

Whisk the eggs, maple syrup, lemon juice, zest, yogurt, oat flour, and salt until completely smooth.

STEP 5

Pour the filling over the warm crust and bake for 18 to 22 minutes until the center barely wobbles.

STEP 6

Cool on a rack, chill for at least 3 hours, then lift out and slice into 16 squares.

Serving Ideas and Easy Twists

• Top each square with fresh berries instead of powdered sugar.
• Add a small spoonful of Greek yogurt for a creamy finish.
• Pair with my crispy shortbread lemon curd cookies when you want a buttery contrast on a shared platter.
• Sprinkle with a little extra lemon zest for a bright aroma.
• Serve alongside hot green tea for a light afternoon snack.

Pro Tips

• Blend the oats until very fine so the crust holds together without much fat.
• Press the crust firmly, since a lower fat dough needs extra pressure to stay intact.
• Use plain yogurt, not vanilla, so the filling stays tangy.
• Pull the pan when the center still wobbles, because the filling firms up as it chills.
• Chill for a full 3 hours so the lighter filling sets cleanly.
• Keep the bars refrigerated so the crust and filling stay firm.

Low-Calorie Healthy Lemon Bars

These lighter lemon bars feature a tender oat flour crust made with applesauce and a creamy, tangy lemon filling with Greek yogurt. Naturally sweetened with maple syrup, they make a bright, refreshing treat with smaller portions and less added fat than traditional lemon bars.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 36 minutes mins

Chilling Time 3 hours hrs

Total Time 3 hours hrs 51 minutes mins

Servings: 16 squares

Course: Dessert, Snack

Cuisine: American

Ingredients Equipment Method Notes

Ingredients

  

Oat Flour Crust

• 1 1/2 cups oat flour or blend old-fashioned oats until fine
• 2 tablespoons maple syrup
• 3 tablespoons unsweetened applesauce
• 2 tablespoons coconut oil melted
• 1/4 teaspoon fine salt

Lemon Filling

• 3 large eggs at room temperature
• 1/3 cup maple syrup
• 1/3 cup fresh lemon juice strained, about 2 lemons
• 1 tablespoon lemon zest finely grated
• 1/4 cup plain nonfat Greek yogurt
• 2 tablespoons oat flour
• 1 pinch salt

Equipment

• 8×8-inch baking pan
• Parchment paper
• Mixing bowls
• Whisk
• Measuring Cups and Spoons
• Blender or Food Processor
• Cooling Rack
• Oven

Method

 

1. Preheat the oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving an overhang on two sides for easy removal.
2. In a mixing bowl, stir together the oat flour, maple syrup, unsweetened applesauce, melted coconut oil, and salt until a soft, slightly sticky dough forms.
3. Press the dough firmly and evenly into the prepared pan using damp fingertips. Bake for 12 to 15 minutes, until lightly golden.
4. In a separate bowl, whisk the eggs, maple syrup, lemon juice, lemon zest, Greek yogurt, oat flour, and a pinch of salt until completely smooth.
5. Pour the lemon filling over the warm crust. Bake for 18 to 22 minutes, until the center is just set and barely wobbles.
6. Transfer the pan to a cooling rack and let the bars cool. Refrigerate for at least 3 hours, then lift them out using the parchment overhang and slice into 16 squares.

Notes

For homemade oat flour, blend old-fashioned rolled oats until very fine. A fine texture helps the crust hold together. Press the lower-fat dough firmly into the pan using damp fingertips.

Use plain Greek yogurt rather than vanilla yogurt to keep the filling tangy. Remove the bars from the oven while the center still has a slight wobble; the filling will firm up as it chills.

For serving, top with fresh berries, a small spoonful of Greek yogurt, or extra lemon zest. They also pair nicely with hot green tea.

Honey can replace maple syrup in equal amounts. Use certified gluten-free oats when preparing the bars for someone avoiding gluten.

Cover and refrigerate for up to 5 days. Freeze individually wrapped squares for up to 2 months and thaw overnight in the refrigerator.

These bars contain eggs and dairy. Coconut oil is used in the crust. Check ingredient labels for additional allergens.

FAQs

Are these bars really low calorie?
They use less butter and sugar than a classic lemon bar, so each square is lighter. They are still a dessert, so enjoy them as a mindful treat.

Can I make them gluten free?
Yes, use certified gluten free oats for the oat flour. The texture and flavor stay the same.

How should I store the bars?
Cover and refrigerate for up to 5 days. Freeze wrapped squares for up to 2 months and thaw overnight in the fridge.

Can I use a sugar substitute?
Yes, honey works as a one to one swap for the maple syrup. Choose a runny sweetener so it whisks smoothly into the filling.

Why is my crust crumbly?
Lower fat crusts need firm pressing and a damp touch. Press the dough tightly into the pan and let the bars chill fully before slicing.

Light and Lovely

A lighter lemon bar can still feel like a little celebration. I hope these squares brighten your snack time without weighing you down. For more citrus treats, try my melt in your mouth lemon curd cookies, the 5 ingredient glazed lemon curd cookies, or the zesty drop lemon curd cookies.

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