If you don't have leftover sweet potato puree, preheat the oven to 200 °C or 400 °F. Bake washed and dried sweet potatoes for about 1 hour in the oven, until they are soft when pierced with a fork. Scrap the flesh with a spoon and mash it.

To make the dough, dissolve yeast in water and add brown sugar to activate it. Let sit for 5 minutes or until the surface is foamy. Combine it with sweet potato puree, Greek yogurt, eggs and flour. Knead the dough until it's smooth and elastic, about 2-3 minutes. Add more flour if it's too sticky. Transfer it to an oiled bowl and cover it with a damp cloth. Let it rest until it doubles in size. If you put it in the oven over minimum heat (50 °C or 120 °F), it will take about 40 minutes. If you keep the dough at a room temperature, it will take around 1 hour.

Meanwhile, prepare the filling. Combine chopped pecans, honey, cinnamon, coconut flour and coconut oil. Once the dough is ready, roll it on a well-floured surface into a rectangle until it's about 50 x 35 cm (20 x 14 inches). It should be 1.5 cm or about 0.6 inch thick. Spread the pecans mixture evenly over the dough and start to roll from the long edge up.

Preheat the oven to 200 °C or 400 °F. Cut each roll in half, then again each piece in half, then each quarter in three, until you have 12 rolls. Place them tightly side by side into a fitting rectangular backing form. I used 13 x 9 inch pan (33 x 22 cm). Let sit for another 10 minutes. Sprinkle the rolls with a mixture of brown sugar and cinnamon. Bake sweet potato rolls for about 18 minutes, until golden brown. Enjoy!