Preheat your oven to 325°F (165°C)

Grease and flour a 10-inch tube pan or bundt pan

Set out all ingredients to reach room temperature

In a medium bowl, whisk together flour, cocoa powder, baking powder, and salt

Sift the mixture to remove any cocoa powder lumps

Set aside

In a large bowl using an electric mixer, beat butter until creamy (about 2 minutes)

Gradually add sugar, beating until light and fluffy (about 5 minutes)

Scrape down the sides of the bowl as needed

Add eggs one at a time, beating well after each addition

Scrape down the bowl between additions

Mix in vanilla extract

Alternately add the flour mixture and milk to the butter mixture

Begin and end with the flour mixture (three additions of flour, two of milk)

Mix just until combined after each addition

Pour batter into the prepared pan

Smooth the top with a spatula

Bake for 1 hour and 15-25 minutes, or until a toothpick comes out clean

Cool in pan for 15 minutes before removing