Pour the wet ingredients into the dry ingredients and mix until smooth. Fold in the nuts (optional).
Plug in the cake pop maker and wait for it to heat up (there should be an indicator light). Pour mixture into a piping bag or you can just use a spoon to add the batter to the cake pop maker.
Fill the cake pop maker holes (to just under the top edge). Careful not to overfill.
Bake them in the cake pop maker for 3 to 4 minutes per batch, until a toothpick comes out clean from the center. Let cool a few mins.