Introduction
You’ll love these vibrant bars that bring together the bright tang of lemon and the sweet pop of blueberries in a creamy, no-bake filling. A buttery graham cracker crust makes them effortless, and skipping the oven means you can enjoy them even on the hottest summer day.
Prep & Cook Time
Prep Time: 25 minutes
Cook Time: 10 minutes
Total Time: 35 minutes (plus 4+ hours chilling)
Servings: 16 bars
Ingredients
- 1 cup fresh blueberries
- ¼ cup granulated sugar
- 1 Tablespoon lemon juice
- 12 sheets graham crackers
- 3 Tablespoons granulated sugar
- 6 Tablespoons salted butter
- ½ cup heavy cream
- 1½ cups cream cheese (cool room temperature)
- ⅛ cup sour cream
- ½ cup granulated sugar
- 1 Tablespoon lemon zest
- ¾ teaspoon vanilla
- 2¼ teaspoons lemon juice
Instructions
- Make the Blueberry Topping: In a small saucepan over medium heat, combine 1 cup fresh blueberries, ¼ cup granulated sugar, and 1 Tablespoon lemon juice. Cook for 8-10 minutes, stirring often and gently mashing some berries, until the mixture has thickened slightly. Remove from heat and let cool completely.
- Make the Crust: Place the graham crackers in a food processor or sealed bag and crush into fine crumbs. Melt the 6 Tablespoons of salted butter. In a bowl, mix the crumbs with 3 Tablespoons granulated sugar and the melted butter until combined.
- Press the Crust: Line an 8×8 inch baking pan with parchment paper. Pour the crumb mixture into the pan and press it firmly and evenly into the bottom. Place in the refrigerator to set while you make the filling.
- Make the Cheesecake Filling: Using a hand mixer or stand mixer, whip the ½ cup of heavy cream until stiff peaks form. Transfer to another bowl and set aside.
- **In the same mixing bowl (no need to clean it), beat the 1½ cups cream cheese and ⅛ cup sour cream until completely smooth and creamy, about 2 minutes. Beat in the ½ cup granulated sugar, 1 Tablespoon lemon zest, ¾ teaspoon vanilla, and 2¼ teaspoons lemon juice until fully combined.
- Fold: Gently fold the whipped cream into the lemon cream cheese mixture until no white streaks remain.
- Assemble: Spread the cheesecake filling evenly over the chilled crust. Dollop the cooled blueberry topping over the filling, then use a knife or skewer to gently swirl it into the top layer of the filling.
- Chill: Cover the pan and refrigerate for at least 4 hours, or preferably overnight, until completely set.
- Serve: Use the parchment paper to lift the set cheesecake block from the pan. Slice into 16 squares, wiping your knife clean between cuts for neat edges.
Variations
- Individual Cups: For a fun presentation, layer the crust, filling, and blueberry swirl in small jars or dessert cups.
- Tart Variation: Press the crust into a tart pan for an elegant round dessert, slicing into thin wedges to serve.
- Swirl Technique: For a marbled effect, pour half the filling over the crust, dot with some blueberry sauce, add the remaining filling, then add more sauce and swirl more deeply.
- Lemon Curd Swirl: Replace the blueberry topping with a store-bought or homemade lemon curd for an intense lemon flavor.
Tips for Success
- Ensure your cream cheese is at a cool room temperature for a smooth, lump-free filling.
- Chill the bars overnight for the cleanest, easiest slices.
- When making the crust, press it down very firmly with the bottom of a glass or measuring cup to prevent it from crumbling later.
- Don’t over-swirl the blueberry topping, or the colors will muddy together; just a few gentle passes with a knife is perfect.
Storage & Reheating
FAQ
Can I use frozen blueberries?
Yes, you can use frozen blueberries without thawing for the topping. The cooking time may increase by a minute or two to help evaporate the extra liquid.
My cream cheese filling is lumpy. How can I fix it?
This is usually due to cream cheese that is too cold. Let it soften at room temperature for a longer period, or gently warm the lumpy filling in a bowl set over a pan of warm water while stirring, then chill again before assembling.
Can I use unsalted butter for the crust?
Yes, but you may want to add a tiny pinch of salt to the crust mixture to balance the sweetness.
Why do I need to chill the bars for so long?
The chilling time is essential for the filling to set firm enough to slice cleanly. Rushing this step will result in messy, soft bars.
Can I double this recipe?
Absolutely. Double all ingredients and press the crust into a 9×13 inch pan. The chilling time will remain the same.
What can I use instead of a food processor for the crust?
Place the graham crackers in a sturdy zip-top bag and crush them with a rolling pin or the bottom of a heavy pan until you have fine crumbs.