Preheat your oven to 350°F (175°C) and generously grease a bundt pan.

In a bowl, whisk together flour, baking powder, and a pinch of salt.

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

Add eggs one at a time, mixing well after each addition. Incorporate vanilla extract, orange zest, and juice.

Gradually combine dry ingredients with the wet mixture, alternating with buttermilk until just mixed.

Pour batter into the prepared bundt pan and bake for 45-50 minutes or until a toothpick inserted comes out clean.

Cool in the pan before transferring to a wire rack. Drizzle with an additional glaze made from powdered sugar and orange juice before serving.