01 -
Preheat oven to 375°F. Line an 8×8-inch baking pan with parchment paper, leaving overhang on the edges for easy removal.
02 -
In a medium bowl, combine oats, flour, brown sugar, cinnamon, and salt until thoroughly mixed.
03 -
Stir the melted butter into the oatmeal mixture until it forms clumps. Reserve 1/2 cup of the crumble mixture for topping.
04 -
Press the remaining oat mixture into an even layer in the bottom of the prepared pan.
05 -
In a small bowl, toss strawberries, granulated sugar, cornstarch, and lemon juice together until evenly coated.
06 -
Spread the strawberry mixture over the oat base, then sprinkle the reserved crumbs over the fruit filling. Note that the crumbs won't completely cover the fruit.
07 -
Bake the bars for 35-45 minutes, or until the topping is light golden brown and fragrant.
08 -
Allow the bars to cool in the pan until they reach room temperature.
09 -
Whisk powdered sugar, vanilla, and milk together until smooth and well combined.
10 -
Drizzle glaze over the cooled bars, then cut into squares to serve.