Preheat your oven to 325°F (160°C) and grease a bundt pan.

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

Add the eggs one at a time, mixing well after each addition.

Mix in the vanilla extract.

In another bowl, combine the flour, baking powder, baking soda, and salt.

Gradually add the dry ingredients to the wet mixture, alternating with buttermilk.

Pour the batter into the prepared bundt pan, smoothing the top.

Bake in the preheated oven for 50-60 minutes, or until a toothpick comes out clean.

While the cake is baking, prepare the glaze by mixing powdered sugar and milk until smooth.

Once baked, let the cake cool for 10 minutes before inverting it onto a plate and drizzling with the glaze.