
Key Lime Shortbread Bars
Citrus lovers will be wild about these luscious Key Lime Shortbread Bars! Key lime shortbread bars have a tangy, sweet key lime filling, buttery shortbread crust, and they’re topped with a dusting of powdered sugar. This recipe requires minimal ingredients and comes together in 15 minutes. They have a buttery, flaky crust, they’re bursting with fresh key lime flavor, and they’re so easy to make!
Author: Flavor the Moments
Meal Type: Peanuts Free
Cuisine: American
Difficulty: MEDIUM
Prep. Time: 15 minutes
Cook Time: 50 minutes
Total Time: 1 hour 5 minutes
Servings: 9 servings
Calories: 220 kcal per serving
Ingredients
- ½ cup - unsalted butter
- ¼ cup - powdered sugar
- 1 cup - all purpose flour
- a pinch of salt
- 3 - eggs
- 1 cup - granulated sugar
- 3 tablespoons - all purpose flour
- 1 tbsp - lime zest
- ½ cup - key lime juice
- ½ cup - powdered sugar
Instructions
- Preheat oven to 350 degrees. Line an 8×8" baking dish with parchment paper or foil.
- Prepare the crust. In a large bowl, beat the butter and 1/4 cup powdered sugar till light and fluffy, about 2-3 minutes. Add flour and salt, and beat on low speed until just incorporated.
- Scrape the dough into the prepared pan and spread evenly with an offset spatula. Bake on the middle rack of the oven 20-25 minutes, or until lightly golden. Remove from the oven and cool on a wire rack while you prepare the filling.
- Prepare the filling. In a medium bowl, whisk the eggs and granulated sugar until well incorporated. Add the 3 tablespoons of flour and whisk until combined, then whisk in the lime juice and zest.
- Pour the filling over the cooled crust, and bake 20-25 minutes longer, or until the filling has set. The filling will not "wiggle" when the pan is moved gently back and forth. Remove from heat and cool completely on a wire rack.
- Once the key lime bars have cooled, cut into squares with a sharp knife, wiping the knife clean in between slices. Dust with powdered sugar, serve and enjoy!
Nutrition
Energy: 220 kcal | Total Fat: 12 g | Saturated: 1 g | Trans: 0 g | Unsaturated: 0 g | Cholesterol: 91 mg | Total Carbs: 48 g | Fiber: 1 g | Sugars: 32 g | Proteins: 4 g | Sodium: 69 mg | Polyunsaturated: 0 g | Monounsaturated: 1 g
©2026 OnlineCook LLC