Weight Watchers Low Fat Lemon Bars
3.54 from 66 votes

Weight Watchers Low Fat Lemon Bars Recipe

Light and luscious, these Weight Watchers low fat lemon bars are a winner. More tart than sweet, each bar has just 113 calories and *5WW SmartPoints.
Prep Time20 mins
Cook Time50 mins
Total Time1 hr 10 mins
Servings: 16
Calories: 113
Author: Martha McKinnon | Simple Nourished Living


  • 1 cup all-purpose flour, divided use
  • 1/4 cup cornmeal
  • 1/8 teaspoon baking powder
  • 1/8 teaspoon salt
  • 2 large eggs
  • 1 large egg white
  • 1 teaspoon water
  • 2 tablespoons butter, softened
  • 1 cup granulated sugar, divided use
  • 1 tablespoon lemon zest
  • 1/2 cup lemon juice (about 4 lemons)
  • 1 tablespoon confectioners' sugar


  • Position an oven rack in the center of the oven. Heat the oven to 350F degrees. Line an 8-inch square baking pan with foil, allowing the foil to extend over the rim by 2 inches. Spray the foil with non-stick spray.

To make the crust:

  • In a small bowl, whisk together 2/3 cup of the flour, cornmeal, baking powder and salt until well blended; then set it aside.
  • In another small bowl, beat together the eggs and egg white.
  • Take 1 tablespoon of the egg mixture and place it in a cup, along with the teaspoon of water, and stir it together. Set aside both egg mixtures.
  • With an electric mixer on low speed, beat the butter in a medium bowl until creamy. Add 1/4 cup of the granulated sugar and beat until blended. Beat in the egg-water mixture. Add the flour mixture and beat until blended. (The dough will be crumbly.)
  • Press the dough mixture evenly onto the bottom and 1/4-inch up the sides of the foil-lined pan. Bake until golden brown, 20 to 25 minutes.

Make the filling while the crust bakes:

  • In a medium bowl, whisk together the remaining 1/3 cup flour and 3/4 cup granulated sugar. Whisk in the remaining egg mixture until blended. Add the lemon zest and lemon juice and whisk until well blended.
  • Remove the crust from the oven and place on a rack. Reduce the oven temperature to 300F degrees. Pour the lemon mixture over the hot crust. Bake until the filling is set, 20 to 25 minutes.
  • Remove from the oven and place on a wire rack to cool. Refrigerate until cold, at least 1 hour and up to 8 hours.
  • When ready to serve, sprinkle the chilled bars with confectioners' sugar. Use the foil to lift the slab of bars from the pan. Cut into 16 even squares.

Recipe Notes

5 *SmartPoints (Green plan)
5 *SmartPoints (Blue plan)
5 *SmartPoints (Purple plan)
3 *PointsPlus (Old plan)
Nutrition Facts
Weight Watchers Low Fat Lemon Bars Recipe
Amount Per Serving (1 lemon bar)
Calories 113 Calories from Fat 18
% Daily Value*
Fat 2g3%
Carbohydrates 22g7%
Fiber 0.25g1%
Protein 2g4%
* Percent Daily Values are based on a 2000 calorie diet.
Course: Dessert
Cuisine: American
Keyword: healthy lemon dessert bars, light lemon bars, low-fat lemon dessert