Step 1

Preheat the oven to 350 degrees F.

Step 2

Coat a 9x13-inch baking dish with nonstick spray and set aside.

Step 3

In a large bowl combine the melted butter, the brown sugar, 1/2 cup of the granulated sugar, the oats, the salt, and the flour and stir until completely combined.

Step 4

In another large bowl, add the blueberries, the lemon juice, the remaining granulated sugar, and the cornstarch and gently stir to combine and coat the blueberries.

Step 5

Spread the blueberries in the prepared pan and top evenly with the crisp mixture.

Step 6

Bake until the crisp is browned and the blueberries are bubbly, about 45-50 minutes.

Step 7

Transfer the crisp from the oven and allow it to cool for at least 20 minutes.

Step 8

Serve.