Preheat the oven to 350℉, and butter a 9X5 inch loaf pan. Set aside.
Spread the walnuts on a baking sheet and roast for 10 minutes. Keep an eye on them because they burn quickly.
1 cup Walnuts
Mix all dry ingredients and set aside.
1½ cup All-purpose flour, 1 teaspoon Baking soda, 1 teaspoon Cinnamon, ½ teaspoon Salt, ½ cup Baking powder
Use the paddle attachment and beat the butter and both sugars until creamy and smooth.
½ cup Butter, ¼ cup Brown sugar, ¾ cup Granulated sugar
Add in the oil and mix.
¼ cup Oil
Add the eggs and vanilla extract and mix well.
2 Eggs, 1 tablespoon Vanilla extract
Add in the sour cream and mix well.
¼ cup Sour cream
Add the mashed bananas and mix well.
1½ cup Mashed bananas
Switch to a rubber spatula and fold in the dry ingredients in three passes. Gently mix and stop mixing when there is no trace of dry ingredients left.
Lastly, mix in the chopped and roasted walnuts and pepitas.
1 cup Walnuts, ¼ cup Pepitas seed
Pour the batter into the greased pan, spread the chopped walnuts and pepitas over the top and gently press them down.
¼ cup Walnuts, 1 tablespoon Pepitas seed
Bake the loaf in the preheated oven for 50-55 minutes or until an insert comes out clean.
Let the loaf sit in the pan for 10 minutes, then remove it from the pan and let cool down on a cooling rack.