Preheat the oven to 350°F (175°C).

In a mixing bowl, combine the softened cream cheese and sugar until smooth.

Add the beaten egg and vanilla extract, mixing until well combined.

In a separate bowl, whisk together the flour, baking powder, and salt.

Gradually add the dry ingredients to the cream cheese mixture, stirring until just combined.

Pour the batter into a greased loaf pan.

Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted in the center comes out clean.

Allow to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.