Preheat oven to 350 degrees F. Line muffin tins with paper cupcake liners.
In a medium bowl, combine flour, baking powder, salt, and granulated sugar.
Put eggs, butter, milk, and vanilla in a bowl and beat with an electric mixer. Combine the wet ingredients with the dry ingredients. Fold in the strawberry chunks. Fill muffin tins 2/3 full with batter. Sprinkle turbinado sugar on top of each. Place in oven for 20-25 minutes, until browned and a toothpick inserted into the center comes out clean.