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Aunt Martha's Perfect Lemon Bars

Light, buttery crisp crust with a pie-like lemon filling that forms a slightly crunchy powder-sugar-dusted top.

Course Cookies and Bars
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 20 bars



  • 1 1/2 cups flour
  • 1/2 cup powdered sugar
  • 1 cup cold butter cut in pats


  • 3 Tbsp flour
  • 2 cups sugar
  • 1/4 cup lemon juice
  • 1/2 tsp lemon extract
  • 1 to 2 tsp lemon zest, to taste optional
  • 4 Eggs


  1. Pulse crust ingredients in food processor til well blended. Press into ungreased 13" x 9" pan. Bake at 350 degrees for 15 minutes.

    While crust bakes, combine filling ingredients in food processor and process until well blended. 

    When crust is baked, pour filling over the still-hot crust and bake for an additional 25 minutes or until top is slightly blistered and lightly browned. Dust with powdered sugar while still warm.

    Cut into squares and serve with fruit if desired.