Who doesn’t enjoy the bright, sweet-tart flavor of lemon blueberry bars? If you’re watching calories, sugar, or fat, it’s easy to assume you must skip desserts. Luckily, this lighter take on the classic dessert lets you indulge without derailing healthy eating goals. Using a low-fat graham cracker-style crust and sugar-free condensed milk in the filling, these bars deliver the same refreshing lemon-blueberry flavor with far less added sugar and reduced fat. They’re perfect for afternoon treats, potlucks, or when you want a guilt-reduced dessert that still tastes homemade and satisfying.
Lemon Blueberry Bars
Bright, tart lemon filling balanced with juicy blueberries on a crisp, low-fat graham cracker crust. These bars use sugar-free condensed milk and a sugar substitute in the crust for a lighter dessert option.
Course:
Dessert
Dessert
Cuisine:
American
American
Keyword:
lemon blueberry bars
lemon blueberry bars
Servings: 16 bars
Author: dieTTaste
Ingredients
- FOR THE LOW-FAT CRUST:
-
1 1/2
cups
(250 g) digestive biscuit crumbs
or graham cracker crumbs -
sugar substitute
(stevia, Splenda, or another granular sweetener), amount equivalent to 1/4 cup sugar - zest of 1/2 lemon
-
1 1/2
Tbsp
oil -
3–6
Tbsp
milk
(adjust to achieve cohesive crumbs) - FOR THE LEMON BLUEBERRY FILLING:
-
1 3/4
cup
(14 ounce; 415 ml) sugar-free condensed milk -
2
large egg yolks -
1/4–1/2
cup
fresh lemon juice
(adjust to taste; more juice increases tartness and helps set the filling) - zest of 1 lemon
-
1
cup
fresh blueberries
Instructions
-
Preheat the oven to 350°F (175°C). Line or lightly grease an 8×8-inch baking pan for easy removal.
-
Place the digestive biscuit or graham cracker crumbs in a food processor and pulse until very fine. Add the sugar substitute, lemon zest, oil, and 3 tablespoons of milk. Pulse again until the crumbs begin to clump together. If the crumbs seem too dry, add additional milk one tablespoon at a time until they hold when pressed but are not soggy.
-
Transfer the crumb mixture to the prepared pan. Press the crumbs firmly and evenly across the bottom and slightly up the sides to form the crust. Bake for 10 minutes, then remove from the oven and set aside to cool slightly while you prepare the filling.
-
In a medium bowl, whisk together the sugar-free condensed milk, egg yolks, fresh lemon juice, and lemon zest until smooth. The acidity from the lemon juice will help the filling thicken slightly and contribute a fresh, bright flavor.
-
Gently fold three-quarters of the blueberries into the filling. Fold carefully so the berries remain whole and the filling retains its pale lemon color rather than turning purple. Pour the filling evenly over the warm crust. Scatter the remaining blueberries on top for visual contrast and bursts of flavor.
-
Return the pan to the oven and bake for 15–20 minutes, or until the filling is set around the edges and slightly jiggly in the center. Avoid overbaking to keep the filling creamy.
-
Allow the bars to cool to room temperature, then transfer to the refrigerator to chill for several hours or overnight. Chilling helps the filling fully firm up and makes the bars easier to slice.
-
When ready to serve, cut into 16 bars. For a finishing touch, you can grate a little extra lemon zest over the top or dust with a tiny amount of powdered sugar substitute if desired. Store leftovers covered in the refrigerator for up to several days.