Preheat oven to 350 degrees. Sift flour, salt, and baking powder in medium bowl. Mix with sugar and slowly stir in milk to make batter. Melt butter in 8” x 8” x 2 “ baking dish. Pour batter over melted butter. DO NOT STIR! Dump blueberries into batter, and sprinkle cinnamon and lemon peel on top of mixture. Bake for 60 minutes. Serve hot with ice cream, milk, or whipped cream.