01 - 
                Set the oven to 350°F and spray a 9-inch loaf pan with nonstick baking spray.
              
              
              
                02 - 
                Beat the softened butter with sugar in a medium mixing bowl until smooth.
              
              
              
                03 - 
                Blend in the eggs, milk, and vanilla until well incorporated.
              
              
              
                04 - 
                Mix in the baking powder, salt, and flour until the batter is fully combined.
              
              
              
                05 - 
                Gently stir the blueberries into the batter, being careful not to mash them.
              
              
              
                06 - 
                Pour the mixture into the prepared pan and sprinkle the coarse sugar on top.
              
              
              
                07 - 
                Bake for 65-75 minutes for a large loaf, or 30-40 if using smaller pans.