Step 1

Preheat the oven to 350ºF. Spread the 1 tablespoon of softened butter on the bottom of a 1 quart baking dish.  (I used a 9-inch deep dish pie dish and it worked perfectly.)

Step 2

Combine the blueberries, sugar, flour and cinnamon in a large bowl.  Pour the berry mixture into the prepared pan.

Step 3

In the same bowl, combine the flour, brown sugar and salt. Add the melted butter and use your fingers to mix the mixture so that it resembles coarse sand.  Sprinkle the mixture evenly over the top of the berries.  Sprinkle the tablespoon of sugar over the top.

Step 4

Bake in the preheated oven for 40-45 minutes until the filling is bubbling and the crisp topping is browned.