Pre-heat oven to 350°F and grease a bundt pan.

Beat butter and sugar in a stand mixer or bowl with hand mixer until fluffy.

With mixer on low, add eggs one at a time until each is well incorporated.

Now add buttermilk, vanilla, and sourdough discard until well mixed.

Add the flour, baking powder, and salt with danish dough whisk or wooden spoon until all ingredients are just combined.

Pour into prepared bundt pan and bake for 30-35 minutes or until lightly golden brown on top and beginning to move from the sides of the pan.

Let rest in pan for 10-15 minutes before carefully removing to a wire rack to cool completely.