Grapefruit Bars Zesty Citrus Dessert (Print View)

Buttery crust topped with bright grapefruit custard, perfectly balanced between sweet and tart.

# What You'll Need:

→ Shortbread Crust

01 - 1 cup unsalted butter, softened
02 - ½ cup granulated sugar
03 - 2 cups all-purpose flour
04 - ¼ teaspoon salt

→ Grapefruit Filling

05 - 1 ¼ cups granulated sugar
06 - ¼ cup all-purpose flour
07 - 4 large eggs
08 - ¾ cup freshly squeezed grapefruit juice
09 - 1 tablespoon grapefruit zest
10 - 2 tablespoons freshly squeezed lemon juice

→ Finishing

11 - Powdered sugar for dusting

# How to Make:

01 - Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - Cream together softened butter and granulated sugar until light and fluffy. Add flour and salt, mixing until just combined.
03 - Press dough evenly into the bottom of the prepared pan. Bake for 18-20 minutes or until lightly golden at the edges.
04 - Whisk together sugar and flour. Add eggs, grapefruit juice, grapefruit zest, and lemon juice. Whisk until smooth and fully combined.
05 - Pour filling over the hot crust immediately after it comes out of the oven.
06 - Return pan to the oven and bake for 18-22 minutes, or until the center is just set and does not jiggle excessively.
07 - Remove from oven and let cool completely in the pan. Once cooled, lift out using parchment overhang and cut into bars.
08 - Dust with powdered sugar just before serving.

# Expert Suggestions:

01 -
  • The crust stays incredibly tender thanks to softened butter that has been creamed just right
  • That signature grapefruit tang wakes up your palate without being overwhelmingly sour
  • These bars actually improve after a night in the fridge, making them perfect make-ahead treats
02 -
  • Hot crust meets room temperature filling—this temperature contrast is what prevents your crust from becoming soggy
  • The center should still have a tiny bit of wobble when it comes out of the oven because residual heat finishes the job
  • Letting these cool completely before cutting is excruciating but necessary for clean edges that do not crumble apart
03 -
  • Use pink or ruby red grapefruits for a gorgeous rosy hue that makes these bars utterly irresistible to look at
  • Room temperature eggs are non-negotiable here because cold eggs can cause the filling to separate or curdle

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