Blueberry cobbler

This is one of my most favorite summer desserts, when the blueberries are on sale.  and it's super easy

2/3 cup sugar
2 tablespoons cornstarch
3/4 cup water
3 cups fresh or frozen blueberries (I've made with both, and prefer fresh)
1 tsp butter
1 lemon

In a saucepan, combine sugar and cornstarch, stir in water.  Bring to a boil; stirring constantly, boil for 1 minute.  Add blueberries and lemon juice (as much as you like--I usually use one half small lemon).  Pour blueberry mixture into a lightly butter baking dish (8x8).  Add pats of butter to top.

Topping:
1 cup sifted all purpose flour
1 1/2 tsp baking powder
1/2 tsp salt
1/3 cup milk
3 tbsp butter divided

(I like to 1.5 the topping)  For topping, sift together the flour, baking powder, and salt.  Pour milk and melted butter into a measuring cup.  Add to flour mixture all at once.  Stir just until mixture is moistened and forms a ball.  Drop spoonfuls onto the blueberries.

Bake 425 for 25 min.

Serve warm with ice cream.