Preheat the oven to 180C. Grease the mini bundt cake pan.

Combine the flour, baking powder, and salt and set aside.

In a large bowl, cream together the butter and sugar until light and fluffy.

Add in the eggs one at a time.

Add the flour mixture and mix just until incorporated.

Fold the chocolate chip and milk into the batter, then quickly but carefully fold in until no streaks remain.

Pour batter into a bundt pan and bake in the preheated oven for 60 minutes, or until a toothpick inserted into the center of the cake comes out clean.

Let cool for 10 minutes in the pan, then turn out onto a wire rack.