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+ servings

Shortbread Grapefruit Bars

Buttery shortbread crust and a luscious grapefruit filling are an incredible duo in these tangy shortbread grapefruit bars that are the perfect way to use up extra citrus fruit!
Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Servings 9 servings
Calories 310kcal


Shortbread Crust

  • 1/2 cup butter, softened
  • 1/3 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 2 cups white whole wheat flour

Grapefruit Filling

  • 3/4 cup grapefruit juice
  • 2 tablespoons grated grapefruit zest
  • 5 large eggs
  • 1-1/4 cups granulated sugar
  • 3/4 cup white whole wheat flour
  • 1/2 teaspoon salt
  • Powdered sugar for dusting


Shortbread Crust

  • Preheat oven to 350F. Line a 9x9 baking pan with parchment paper. Set aside. In a large bowl, beat butter and sugar together with a handheld mixer until completely creamed, about 2 minutes. Fold in vanilla, salt and flour until a dough forms.
  • Pat dough evenly into the bottom of the prepared pan. Bake at 350F 15-20 minutes or until lightly browned. Remove from oven and cool slightly while you prepare the filling.

Grapefruit Filling

  • In a large bowl, whisk all filling ingredients until smooth. Pour over crust and bake custard bars at 350F an additional 30-35 minutes until the filling is set (the center may still slightly jiggle)
  • Cool bars completely on a wire cooling rack then chill completely before dusting with powdered sugar, slicing into squares and serving. Enjoy!


Serving: 1bar | Calories: 310kcal | Carbohydrates: 42.7g | Protein: 7.3g | Fat: 13.5g | Saturated Fat: 7.3g | Cholesterol: 130mg | Sodium: 239mg | Potassium: 165mg | Fiber: 2.9g | Sugar: 24.7g | Calcium: 20mg | Iron: 1mg