Preheat oven to 180 degrees. Grease and line a small loaf pan.
Whisk together all the dry ingredients in a large bowl.
In a jug, whisk the wet ingredients and the cookie butter and whisk till smooth. Pour over the dry ingredients and fold with a spatula till smooth.
Pour into the pan and top with the melted cookie butter, creating swirls.
Bake for 40 minutes or till skewer inserted comes out clean. Cool in pan for 5 minutes before flipping onto a cooling rack. Cool completely before slicing and serving.