Preheat your oven to 350°F (175°C). Grease and flour a loaf pan.
In a mixing bowl, cream the softened butter and sugar until light and fluffy. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
In another bowl, whisk together the flour, baking powder, and salt. Gradually add this mixture to the butter mixture, alternating with the sour cream. Fold in the crushed Oreo cookies and mini chocolate chips if using.
Pour the batter into the prepared loaf pan and smooth the top. Bake for 60 minutes or until a toothpick comes out clean. Let it cool before slicing.
Notes
You can add more crushed Oreo cookies on top for decoration.