My Favorite Keto Banana Bread Recipe - only 2 g net carbs

Ingredients

• 1 ½ cups almond flour
• 2 scoops unflavored or vanilla protein powder or 1/4 cup coconut flour
• 2 teaspoons baking powder
• 1 teaspoon cinnamon
• 1/2 teaspoon salt
• 2 1/2 sticks of unsalted butter, softened
• 1/2 cup sugar free sweetener
• 4 eggs
• 1 tablespoon banana extract flavoring or 2-3 dropperfuls banana flavoring
• 1/3 cup sour cream
• 1/2 cup chopped walnuts, divided (optional)