Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9×5-inch loaf pan.

Prepare Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.

Cream Butter and Sugar: In a large bowl, using an electric mixer, cream the softened butter and granulated sugar until light and fluffy.

Add Eggs and Vanilla: Beat in the eggs one at a time, ensuring each is fully incorporated, then mix in the vanilla extract.

Alternate Dry Ingredients and Milk: Gradually add the flour mixture to the butter mixture, alternating with the milk, beginning and ending with the flour mixture. Mix until just combined.

Fold in Blueberries: Gently fold in the blueberries until evenly distributed. Be careful not to overmix.

Transfer to Pan: Pour the batter into the prepared loaf pan and smooth the top.

Bake: Bake in the preheated oven for 60-70 minutes, or until a toothpick inserted into the center comes out clean.

Cool: Allow the bread to cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely before slicing.