Sweet Potato Mixture: Using a hand blender, in a large bowl, add butter, brown sugar, cinnamon, mix until fully combined. Add egg, vanilla extract, sweet potato, Greek yogurt, blend well.
Flour Mixture: In a bowl, add flour, baking soda, baking powder and salt, mix well.
Add flour mixture into sweet potato mixture, mix until combined. Then add chocolate chips and mix well.
In a loaf pan, lightly spray with cooking spray, add sweet potato mixture, bake at 350 degrees for 45-55 minutes. Insert a toothpick in middle, if toothpick comes out dry, loaf is ready. Let cool for 15 minutes, and ready to serve.