Romanian Berry-Stuffed Cake

Method

1. Preheat oven to 350°F (175°C).
2. In a large bowl, cream together butter and sugar until light and fluffy.
3. Beat in eggs one at a time, then mix in milk and vanilla extract.
4. In a separate bowl, whisk together flour, baking powder, and salt.
5. Gradually add dry ingredients to the wet mixture, alternating with milk if needed.
6. Pour batter into a greased 9-inch round cake pan.
7. Bake for 25-30 minutes or until a toothpick inserted comes out clean.