Preheat your oven to 350°F (175°C) and line the loaf pan with parchment paper.
In a mixing bowl, blend the softened butter and sugar until they become light and fluffy.
Add the eggs one at a time, beating them in, and then stir in the vanilla extract.
In a separate bowl, combine the flour, baking powder, and salt by whisking them together.
Gradually add the dry mixture to the wet mixture, alternating with the milk.
Gently fold in the fresh blueberries.
Pour the batter into the prepared loaf pan and smooth the top.
Bake in the preheated oven for 60-70 minutes or until a toothpick inserted into the center comes out clean.
Allow the blueberry bread to cool in the pan for 10 minutes, then transfer it to a cooling rack to cool completely.