Step 1

Preheat oven to 350 degrees.

Step 2

Place 4 Tablespoons Butter in 9 x 13 baking dish. Place in oven and let butter melt, watching carefully.

Step 3

In a medium-size bowl, stir together blueberries, 1/4 cup of sugar and lemon zest. Set aside.

Step 4

In a large bowl, stir together flour, baking powder, remaining 1 1/4 cup of sugar, and salt. In a microwave-safe bowl, melt remaining 8 Tablespoons of butter. Whisk in melted butter (let cool for several minutes before adding) and milk. Stir until smooth.

Step 5

Remove baking dish from oven and pour batter into the pan.

Step 6

Dollop blueberry mixture evenly over batter. Generously sprinkle with sugar.

Step 7

Bake until golden brown and edges are crisp -- about 42-48 minutes.

Step 8

Serve with vanilla ice cream or homemade whipped cream.