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a stack of gluten free key lime bars.

Gluten Free Key Lime Bars

Carolyn
With just 7 ingredients, these gluten free key lime bars are simply delicious! Creamy lime curd sits atop a buttery shortbread crust. Perfect for spring and summer get togethers!
Print Recipe
Prep Time 10 minutes
Cook Time 30 minutes
Chill Time: 2 hours
Total Time 2 hours 40 minutes
Course Dessert
Cuisine American
Servings 16 bars
Calories 276 kcal

Equipment

Ingredients
  

For the crust:

  • 2 cups Bob's Red Mill's 1 to 1 Gluten Free Baking Flour spooned and leveled, see note
  • 14 tablespoons unsalted butter, melted (7 ounces)
  • ½ cup powdered sugar
  • ¼ teaspoon kosher salt

For the filling:

  • 2 cups sugar
  • 2 tablespoons Bob's Red Mill's 1 to 1 Gluten Free Baking Flour
  • 5 large eggs, whisked
  • ½ cup key lime juice

Instructions
 

For the crust:

  • Preheat oven to 350 degrees Fahrenheit. Spray a 9x13-inch glass baking dish with nonstick spray. Cut a piece of parchment paper that fits inside the dish but let the excess hang off the sides.
  • In a large bowl, combine the gluten-free flour, powdered sugar, kosher salt, and melted butter. Use a large spoon to stir until combined.
  • Transfer the mixture to the baking dish and use your hands to press evenly into the dish. Bake for 20 minutes, then set aside to cool slightly.

For the filling:

  • In a large bowl, whisk the sugar and flour to combine. Add the eggs and whisk until smooth and incorporated.
  • Add the lime juice to the mixture while whisking to incorporate.
  • Pour the filling into the crust and bake for 20 minutes. Carefully tent the baking dish with aluminum foil and bake for 10 more minutes.
  • Remove the baking dish from the oven and dust the top with powdered sugar. Let the bars cool for 30 minutes, then transfer the baking dish to the fridge to set up for at least another 2 hours, preferably overnight.
  • Use the parchment paper "handles" to remove the bars from the baking dish. Cut into squares and serve.

Notes

What does "spooned and leveled" mean? It means to use a spoon to scoop the flour into the measuring cup, then use the flat edge of a butter knife to level the top. 
Gluten-free flour: I created this recipe with Bob's Red Mill's 1 to 1 Gluten Free Baking Flour. It has a good gluten-like taste and texture. I haven't tested it with another brand yet and all brands react differently in recipes. 

Nutrition

Calories: 276kcalCarbohydrates: 41gProtein: 4gFat: 12gSaturated Fat: 7gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.4gCholesterol: 84mgSodium: 60mgPotassium: 34mgFiber: 2gSugar: 29gVitamin A: 394IUVitamin C: 2mgCalcium: 24mgIron: 1mg
Keyword gluten free key lime bars, gluten free lime bars
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