Step 1Combine pecans with maple syrup in a bowl and mix well. Bake at 180 °C/ 355 °F (fan assisted), or 200 °C/ 400 °F (conventional) for 10 minutes. Remove the pecans from the oven and then reduce the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional). Set aside 12 pecan halves and roughly chop the rest.