Preheat the oven to 350°F (175°C). Line an 8×8-inch square baking pan with parchment paper, leaving about a 2-inch overhang on each side for easy removal.

In a medium bowl, combine the all-purpose flour, granulated sugar, brown sugar, and salt (if using unsalted butter). Mix thoroughly to eliminate any lumps.

Add the melted salted butter and vanilla extract to the dry ingredients and stir until they start to come together, then form large crumbs.

Press about two-thirds of this crumb mixture evenly into the bottom of your prepared pan. Bake for 15-20 minutes until lightly golden.

In another bowl, mix together the chopped strawberries, granulated sugar, and all-purpose flour to coat the fruit evenly.

Spoon the strawberry mixture evenly over the slightly cooled baked crust layer.

Crumble the remaining one-third of the crust mixture evenly on top of the strawberry layer.

Bake again for 30-35 minutes until strawberry juices are bubbling and topping is golden brown.

Let the bars cool completely in the pan.

In a small bowl, whisk together the powdered sugar, cream, and vanilla extract. Drizzle this vanilla glaze over the cooled bars.

Once glazed, cut into 12 bars and serve.