Sift flour, salt, baking powder and sugar together in a large bowl.
In a separate bowl, beat egg and milk.
Add egg mixture to your flour mixture. Mix in the butter and fold in quartered blueberries.
Pour batter, 1/4 cup at a time, onto a hot griddle, greased with cooking spray. Drop additional blueberries (if desired) to the top of the batter. Heat on both sides until golden brown. Serve hot.