Preheat the oven to 350 and prepare a 9x5-inch loaf pan with parchment and grease. Set to the side.
In a medium-sized bowl, combine the flour, baking powder, and salt. Set to the side.
In a large bowl with a hand mixer or in the bowl of a stand mixer with a paddle attachment, cream the butter with the sugar until light and fluffy, about 2-3 minutes. Add in the eggs, buttermilk, and vanilla, scraping down the sides of the bowl as needed.
Add the dry ingreidents to the butter mixture, mixing until just combined. Fold in the chocolate chips. The batter will be very thick.
Pour the batter into the prepared pan and bake for 65-75 minutes, until golden brown on top.
Let the loaf cake cool fully in the pan. Slice when ready to serve and enjoy.