Preheat your oven to 350°F (175°C) and grease and flour a 9x9 inch baking pan.

In a mixing bowl, whisk together the flour, baking powder, and salt until well combined.

In another bowl, beat the eggs with the granulated sugar until creamy. Then, add the melted butter and vanilla extract, mixing until smooth.

Gradually add the dry ingredients to the wet mixture, stirring until everything is just combined.

Gently fold in the fresh cranberries, ensuring they are evenly distributed in the batter.

Pour the batter into your prepared pan, spreading it evenly to ensure uniform baking.

Bake in the preheated oven for about 30 minutes, or until a toothpick inserted into the center comes out clean.

Once baked, allow the bars to cool completely before cutting them into squares.