Ingredients
Equipment
Method
Prepare the Shortbread Crust
- Preheat oven to 375°F (190°C). Line a 9x13 inch baking pan with parchment paper, leaving an overhang on the sides for easy lifting.
- In a large mixing bowl, whisk together flour, granulated sugar, and salt.
- Cut in the cold butter cubes using a pastry blender, your fingertips, or a food processor until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
- Press the dough evenly into the bottom of the prepared baking pan. Use the bottom of a flat glass or measuring cup to ensure a compact, even layer.
- Bake for 20-25 minutes, or until the edges are lightly golden brown. Let the crust cool completely on a wire rack in the pan.
Prepare the Strawberry Filling
- While the crust cools, combine sliced strawberries, granulated sugar, and lemon juice in a medium saucepan.
- Heat over medium heat, stirring occasionally, until the strawberries begin to release their juices and soften, about 5-7 minutes.
- In a small bowl, whisk cornstarch with 2 tablespoons of cold water to create a slurry.
- Stir the cornstarch slurry into the strawberry mixture in the saucepan. Continue to cook, stirring constantly, until the mixture thickens to a glossy, jam-like consistency, about 2-3 minutes.
- Remove from heat and stir in the vanilla extract. Let the strawberry filling cool completely to room temperature.
Assemble the Bars
- Once the crust and strawberry filling are completely cooled, spread the strawberry filling evenly over the shortbread crust.
- Place the pan in the refrigerator to chill for at least 30 minutes, allowing the strawberry layer to set slightly.
Prepare the Whipped Cream Topping
- In a large, chilled mixing bowl, using an electric mixer on medium-high speed, beat the very cold heavy cream until soft peaks form.
- Gradually add the powdered sugar and vanilla extract, continuing to beat until firm peaks form. Be careful not to overbeat, or it will turn to butter.
- Carefully spread the whipped cream topping over the chilled strawberry layer.
Chill and Serve
- Refrigerate the bars for at least 2 hours (preferably 4 hours or overnight) to allow them to set completely.
- Once set, use the parchment paper overhang to lift the bars out of the pan. Place on a cutting board and cut into 16 squares or rectangles.
- Garnish with additional fresh strawberry slices, if desired, before serving.
Notes
For best results, ensure all layers are completely cooled before assembling to prevent a soggy crust and a runny topping. These bars are best enjoyed within 1-2 days and should be stored in an airtight container in the refrigerator. If making ahead, add the whipped cream topping closer to serving time for optimal freshness, or use a stabilized whipped cream recipe.
