Go Back
The best key lime bars featured by top Utah food blog Among the Young: image of key lime bars with a bite taken out of it
Print Recipe

The Best Key Lime Bars Recipe in the World

Prep Time5 minutes
Cook Time40 minutes
Total Time45 minutes
Course: Dessert
Cuisine: American
Author: Anisa Scalora

Ingredients

  • 1 c. butter room temperature
  • 1/2 c. powdered sugar
  • 2 c. flour
  • 1/2 tsp salt
  • 4 eggs
  • 6-7 TB lemon juice
  • 1 3/4 c. sugar
  • 1/3 c. flour
  • Powdered sugar for topping

Instructions

  • Mix first four ingredients together (butter, powdered sugar, flour, salt) with a pastry cutter.
  • Grease a 9x13 pan.
  • Pat the flour mixture into the 9x13.
  • Bake at 350 for 20 minutes (DO NOT let it get brown, keep it light!)
  • Cool slightly (or don't! I've had great success pouring the lemon mixture right on top and throwing it back in the oven!)
  • In a blender, blend remaining ingredients (eggs, lemon juice, sugar, and flour) until frothy. (30 seconds or longer).
  • Pour over crust.
  • Bake your lemon bars at 350 for 20 minutes (Convection should be 325 for 20 min)
  • Remove from oven and top with powdered sugar. (bars MAY have large bumps in it - Totally normal!)

Troubleshooting:

  • If the middle is not baked all the way (aka - super jiggly) after the 20 minute baking time you may not have blended your egg mixture long enough.
  • Try baking for a few extra minutes. Your lemon bars may still be delicious but not gorgeous.
  • TRY AGAIN! Don't be afraid to give it another go! Sometimes - for no reason at all - these don't set up.