Preheat your oven to 320°F or 160°C.

Now, take a 9x5-inch loaf pan and cover the bottom with a parchment paper or a baking sheet as needed.

Take a bowl and add your all-purpose flour, baking soda, cinnamon, salt, and grated nutmeg, and sift all of the dry ingredients before giving them a thorough mix.

Prepare the Wet Ingredients

Now, take another bowl and add your melted unsalted butter, sugar, brown sugar, 2 large eggs, and whisk everything until they are combined well.

Add your cooked and mashed sweet potatoes to the mix.

Add a teaspoon of vanilla essence and mix well.

Now, add the dry ingredients to the wet ingredients and mix well until all dry patches of flour are gone, and there are no lumps in the batter.

This is the time when you add your walnuts and fold them into the batter.

Pour the batter into your 9x5-inch loaf pan lined with a baking sheet.

Top the batter with more toasted walnuts and put it in the oven.

Bake the loaf for about 60 to 65 minutes.

When it’s done, take it out of the oven and let it cool at room temperature.

When it has cooled down a bit, remove it from the pan and let it cool completely.

Now, slice, serve, and enjoy!