Preheat oven to 350F
In a large mixing bowl mix salt, flour, sugar, baking powder, and brown sugar until fully mixed.
Add vanilla and butter to the dry mixture. Mix well. When mixed it should look like a crumble mix and not a batter.
Lightly grease a 7-inch springform cheesecake pan.
Dump about half of the prepared crumb mix into the pan. Press the mix firmly onto the bottom and slightly up the sides of the pan. Set aside or in the fridge.
In another large mixing bowl beat vanilla, mascarpone, cream cheese, vanilla, sugar, and corn starch together until fully blended.
Add eggs to the cream cheese mixture and beat until fully combined but be careful not to overbeat.
Pour half of the cheesecake mixture over the prepaid crust.
Then scatter about 2/3 cup of blueberries over the cheesecake filling.
Dump the rest of the cheesecake mixture over the blueberries.
Sprinkle the rest of the blueberries over the top of the cheesecake mixture.
Sprinkle the rest of the crumb mixture over the whole cheesecake.
Bake at 350 F for 1 hour or until golden brown. If you notice it is starting to brown too much too early, cover it with aluminum foil.
To make the glaze, simply mix sugar and milk together until fully mixed. You can adjust the thickness by adding more milk or more sugar.
When the cheesecake has fully cooled, drizzle glaze over cheesecake.