Preheat your oven to 180°C (350°F). Grease a loaf tin or line it with parchment paper.
In a large bowl, whisk together the flour, sugar, baking powder, and salt until evenly combined.
Add the eggs, milk, melted butter, and vanilla extract. Whisk until smooth, but don’t overmix.
Gently fold in the blueberries using a spatula, being careful not to crush them.
Pour the batter into the prepared loaf tin and smooth the top.
Bake for 45–50 minutes, or until a toothpick inserted into the center comes out clean.
Let it cool in the tin for about 10 minutes, then transfer to a wire rack to cool completely.
Optional: Dust with powdered sugar or drizzle with a simple vanilla glaze for a sweet finish.