Preheat oven to 350°F (175°C). Grease a 9x13 inch pan or angel food pan.

In a large mixing bowl, combine flour, sugar, baking powder, and salt.

In a separate bowl, whisk together eggs, sour cream, milk, vanilla, and melted butter.

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

Gently fold in the drained blueberries and cream cheese cubes.

Pour batter into the prepared pan.

Bake for 35 to 50 minutes, or until a wooden skewer inserted into the center comes out clean.

Let cool before serving.