These Creamy Lemon Squares are sunshine in dessert form, rich, tangy, and irresistibly smooth.

Creamy Lemon Squares start with a buttery crust made from gluten-free flour, brown sugar, and hearty rolled oats.

The filling is luxuriously smooth, made from sweetened condensed milk and lemon juice.  

They slice neatly, making them perfect for serving at gatherings. This recipe yields 20 pieces.

Each bite delivers a bright citrus tang balanced by velvety sweetness.

Printable Recipe Card with a Full List of Ingredients and Instructions is Located at the Bottom of the Post.

Be sure to read through the entire post so that you don’t miss out on any important tips and tricks!

To begin making Creamy Lemon Squares I softened some butter in the microwave on low power.

Then I put some brown sugar and the softened butter into a mixing bowl and use an electric hand mixer to combine them.

Next I measured in some gluten free 1 to 1 baking flour, baking powder, salt and quick cooking rolled oats.  I used the electric hand mixer on low to combine the ingredients.

I dumped the mixture into an 8" square baking pan that had been sprayed with cooking spray.

Then I pressed the flour mixture firmly into the pan.

Next I prepared the zest from one lemon and juiced it.  For the remaining lemon needed I used some Real Lemon Juice.

Then I added a can of sweetened condensed milk and the lemon juice to a small mixing bowl and stirred to combine.

I poured the milk mixture on top of the base.

Then I sprinkled the prepared lemon zest on top of the milk.

I put the squares in a preheated 350F oven to bake for 35 - 40 minutes or until the squares were starting to brown around the edges.

After removing the squares from the oven I allowed them to cool on a wire rack for at least 30 minutes and then I put them in the fridge to chill before slicing and serving.

The lemon layer sets into a creamy, custard-like topping that slices beautifully.

These Creamy Lemon Squares are both comforting and vibrant at the same time.

The contrast between the crumbly oat crust and silky lemon topping is irresistible.

 

The aroma of lemon zest enhances every bite with a fresh citrus lift.

These squares strike the perfect balance between tart and sweet.  

The lemon flavour tastes fresh, bright, and naturally refreshing making Creamy Lemon Squares the perfect spring treat or a great addition to any Easter dessert tray!

Printable Recipe Card with a Full List of Ingredients and Instructions is Located at the Bottom of the Post.

More Lemon Recipes For You To Enjoy...

PRINTABLE VERSION OF THE RECIPE CAN BE FOUND AT THE BOTTOM OF THE PAGE

Ingredients You'll Need to Make these Creamy Lemon Squares:

Base:

• ¼ cup butter softened
• ½ cup brown sugar
• ¾ cup Bob's Red Mill 1 to 1 Gluten Free Baking Flour
• ½ cup gluten free quick cooking rolled oats
• 1 teaspoon baking powder
• ¼ teaspoon salt
• zest of 1 lemon

Top:

• 1 can Eagle Brand Sweetened Condensed Milk
• ¾ cup lemon juice 

How to Make Creamy Lemon Squares:

1. Preheat oven to 350F and grease 8" x 8" square baking pan.
2. Soften butter in the microwave
3. Using an electric hand mixer cream the butter and brown sugar together.
4. Stir in the flour, baking powder, salt and rolled oats.
5. Dump the mixture into the prepared pan and press down firmly to form the base.
6. Zest a lemon and juice it.  Add more lemon juice to make ¾ cup.
7. Combine the lemon juice and condensed milk in a small bowl.
8. Pour the milk mixture on top of the base.
9. Sprinkle the lemon zest on top of the milk mixture.
10. Bake in the preheated 350F oven for 35 - 40 minutes or until browned around the edges.
11. Remove from oven and let squares cool down.  Chill for a bit before serving.
12. Once chilled slice into squares.
13. Serve and enjoy!

 

FAQs:

What should I serve with creamy lemon squares?

Creamy lemon squares are bright, sweet, and tangy—so they pair beautifully with light, fresh, or subtly sweet accompaniments. Here are delicious serving ideas:

☕ Warm Drinks

• Earl Grey or chamomile tea – The gentle floral notes complement the citrus beautifully.

• Freshly brewed coffee – A bold cup balances the sweetness of the condensed milk layer.

• Vanilla latte – Adds a cozy contrast to the tart lemon flavor.

🍓 Fresh Fruit

• Fresh raspberries or strawberries – Their natural tartness enhances the lemon.

• Blueberries – Sweet and juicy, they pair effortlessly with citrus desserts.

• Mixed berry salad – Light and refreshing alongside the creamy texture.

🍨 Creamy Additions

• Whipped cream – A soft cloud on the side makes them extra indulgent.

• Vanilla bean ice cream – The cool creaminess contrasts beautifully with the bright lemon.

• Lemon yogurt – For a brunch-style presentation.

🥂 Entertaining Pairings

• Sparkling lemonade – Doubles down on the citrus in a refreshing way.

• Prosecco or sparkling wine – Light bubbles elevate the dessert for special occasions.

• Iced herbal tea with mint – Fresh and palate-cleansing.

If you're serving these at a spring brunch or summer gathering, pairing them with fresh berries and a light tea creates a bright, elegant dessert spread.

How do I store creamy lemon squares?

Because creamy lemon squares are made with sweetened condensed milk and fresh lemon juice, they should be stored chilled to keep their texture and flavor fresh.

🧊 Refrigerator (Best Method)

• Let the squares cool completely before storing.

• Place them in an airtight container.

• If stacking, separate layers with parchment paper to prevent sticking.

• Store in the fridge for up to 4–5 days.

• The lemon layer will stay smooth and creamy when kept cold.

❄️ Freezer (Longer Storage)

• Chill completely first so the filling is fully set.

• Wrap individual squares tightly in plastic wrap, then place in a freezer-safe container or bag.

• Freeze for up to 2 months.

• Thaw overnight in the refrigerator before serving.

For the best texture and clean slices, serve them slightly chilled straight from the fridge.