The Best Easy Lemon Bars Recipe (2024)

FAQs

Why did the top of my lemon bars crack? ›

Don't Over-Bake.

If you leave them in the oven too long, it can cause your bars to crack. The surface of your lemon bars should have small bubble holes, but not large cracks.

I often have trouble cutting up any sort of cookie bar, not just lemon bars. I have found that a hot, wet, very sharp knife helps quite a bit. Also, make sure the bars are completely chilled before cutting.

Why are my lemon bars brown on top? Check your oven temperature with an oven thermometer periodically to make sure the settings are correct. If you find that your desserts brown too quickly on the top, bake on a lower rack in your oven to prevent this from happening.

To easily remove your bars from the pan, line your baking dish with parchment paper. A little extra paper up the sides of the pan prevents sticking and makes it easier to remove your bars once cooled. For super clean cuts, make sure your bars are completely cool before cutting.

Set a timer for 5 minutes after pulling the crust from the oven to ensure it doesn't cool too much—if the shortbread is allowed to reach room temperature, the uncooked lemon curd will slip off the top and pool in the bottom of the dish, turning your lemon bars upside down (sounds bananas until it happens to you!).

Prepare your chef's knife for cutting by coating with cooking spray and then wiping it clean with a paper towel. This step will help prevent the knife from sticking to the bars as you cut.

For a 13×9 Pan:

On the long side of the pan, make a mark and cut down every 2 1/10-inches, so you have 6 columns. Turn the pan to its shorter side and make one cut down the middle, 4 ½-inches from the edge. You'll end up with 12 2 1/10×4 ½-inch rectangles.

Lemon bars should be stored in an airtight container and refrigerated in order to prevent bacterial growth or foodborne illness. The filling in lemon bars is made with eggs and can become a breeding ground for bacteria if it's kept in the danger zone (between 41 and 153 degrees F).

Serving: Lemon bars are fine to keep out at room temperature for up to 6 hours or so. Storing: Store cooked lemon bars or leftovers in the refrigerator. Cover tightly with plastic wrap and store for up to 2 days.

Why do my lemon bars look like scrambled eggs? If your lemon bars look like scrambled eggs, it's because you've overcooked them. The key to perfect lemon bars is to cook them until the filling is set, but not too long. You want the filling to be firm but still have a little bit of jiggle to it when you shake the pan.

Why do my lemon bars smell eggy? ›

If your lemon bars have a strong eggy taste/smell, it's likely due to the lemon curd being overbaked. Be sure to take the lemon bars out of the oven as soon as they're done.

Line your 9x13 pan with foil or parchment paper. I've used both. Foil tends to stick to the bottom of the lemon bars a bit, so if I had to choose one, I'd say use parchment paper.

The crust forms when the sugar in the lemon bar mixture caramelizes and browns during baking, creating a slightly firm, crispy layer over the bars. The top crust isn't always visible, as we all enjoy sprinkling powdered sugar on top of the bars before serving.

Seeing a thin whitish foamy layer of air bubbles on top of your baked lemon bars is completely normal. It is the air bubbles created from whisking the eggs rising to the surface during baking. Lemon bars taste the same with or without that layer and a dusting of icing sugar covers it right up!

The oven temperature is too high

If the top crust forms and sets before the cake has finished rising, the middle will try to push through the crust as it continues to bake, causing it to crack and possibly dome.

Toothpick or Knife Test

To check if your lemon bars are perfectly baked, use the simple method of inserting a toothpick or knife into the center. If it comes out mostly clean with a few moist crumbs, the dessert is ready. However, if you notice wet batter on it, it means more time in the oven is needed.

Some batches of lemon bars can have a white foamy looking top layer after they're baked. This is a result of air bubbles releasing to the surface of the filling.

To store lemon bars, simply place in an airtight container and seal tightly, then put them in the fridge. If you're stacking lemon bars, insert a sheet of parchment paper between layers to prevent sticking. According to the USDA, lemon bars will last in the refrigerator up to 7 days.