Sweet Potato Bread

• 1 large sweet potato or 2 medium ones
• ¼ cup (60ml) vegetable oil
• ⅓ cup (80ml) buttermilk
• 2 large eggs , room temperature
• 1 tsp vanilla bean paste or vanilla extract
• 1 ½ cups (200g) flour , all-purpose / plain
• 1 cup (200g) light brown sugar
• 1 tsp baking powder
• ½ tsp baking soda
• 1 ½ tsp ground cinnamon
• 1 tsp ground ginger
• ½ tsp ground nutmeg , freshly ground if possible
• ½ tsp salt

For the glaze

• 1 cup (125g) powdered sugar , (icing sugar)
• 3 tbsp maple syrup
• 1 tsp vanilla bean paste or vanilla extract
• water , as needed

To decorate

• ground cinnamon
• 2 tbsp chopped pecans