Best Ever Lemon Bars Recipe (2024)

FAQs

Why didn t my lemon bars set? ›

Underbaking: This is the most common reason for gooey lemon bars. The filling needs enough time to set, which can be tricky since oven temperatures can vary and the visual cues for doneness are subtle. Solution: Bake the bars until the filling is just set and no longer wobbles when you gently shake the pan.

Dusting the knife with powdered sugar before cutting lemon bars can help to reduce sticking and create cleaner cuts.

Cracks - Cracks happen a lot when either when the lemon mixture if beaten a lot or you bake your bars at too high of a temperature and take them out of the oven. The dramatic change in temperature will sometimes create these cracks. They do not affect the taste, and you can cover it with powdered sugar.

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!).

Here's what you can do: Return them to the oven: Preheat your oven to the same temperature as the original baking temperature (usually 350°F). Place the undercooked lemon bars back in the oven and bake them until the custard sets.

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).

The most common reason for gooey lemon bars is they're undercooked. Be sure to bake them until the top is fully set and no longer jiggly in the middle. You'll also notice the edges will start to brown.

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.

Allow the lemon bars to cool for at least an hour, then transfer to the refrigerator to chill for another two hours. Once chilled, remove from pan and peel away the parchment paper. I always dust with powdered sugar for a little visual contrast but that's optional. Use a SHARP damp knife to cut the bars.

Fresh Lemon to Lemon Juice Conversions

1 1/4 Lemons = 1/4 Cup Lemon Juice. 2 1/2 Lemons = 1/2 Cup Lemon Juice. 4 Lemons = 3/4 Cup Lemon Juice. 5 1/4 Lemons = 1 Cup Lemon Juice.

Why do my lemon bars taste 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. Your oven may also be running a little hot.

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!

Runny Lemon Bars are most likely caused from under baking. Make sure the filling no longer jiggles before taking it out of the oven. If your lemon bars are runny put them in the fridge to firm up as much as possible, keeping them cold will keep them firm.

A custard with both eggs and starch needs to be thoroughly cooked. The reason is that yolks contain an enzyme which liquidifies starch. It doesn't happen outright, but will happen while your tart is cooling. The only way to prevent it is to heat the mix high enough so the enzyme is deactivated.

It's likely your measurements were off and you either added too much lemon juice or not enough egg. You may not have heated the lemon curd to the proper temperature. Using a thermometer is a great way to ensure that you are cooking the egg to the point of thickening – 170 degrees F.

Air bubbles are completely normal when making lemon bars. These little white bubbles are simply trapped air rising to the surface. If your lemon bars have air bubbles, you can easily cover them with a dusting of powdered sugar. Zest first, juice second!