Step 1

Preheat oven to 350°F.

Step 2

Place butter in a 9-inch or 10-inch cast iron skillet. If you don’t have a cast iron skillet, you can use a deep-dish pie plate or a deep 9-inch square baking dish. Transfer the skillet to the oven until the butter melts. Keep a close eye on it so that the butter doesn’t burn or scorch.

Step 3

Meanwhile, in a large bowl, whisk together 1 ¼ cups of sugar, flour, salt and baking powder. Add buttermilk and vanilla extract; stir just until combined.

Step 4

Once the butter melts, carefully remove the hot skillet from the oven. Pour the batter into the skillet. Sprinkle blueberries and remaining 1 tablespoon sugar on top.

Step 5

Bake for 30-35 minutes, or until golden brown and firm. Serve warm with vanilla ice cream.