Vegan Pumpkin Walnut Bread

1 1/2 cup flour
1 teaspoon baking soda 
1/2 teaspoon baking powder
1/2 teaspoon salt
1 cup sugar
1 15 oz can pumpkin puree 
1/4 cup almond milk 
2 teaspoon pumpkin pie spice
1/2 teaspoon cinnamon
1 tablespoon apple cider vinegar
1/2 cup walnuts, crushed 

Grease a bread loaf pan and preheat oven to 450 degrees.
In a medium bowl, mix flour, baking soda, baking powder, salt, and sugar together.
Separately, whisk pumpkin puree, almond milk, pumpkin pie spice, and cinnamon.
Combine dry ingredients with wet. Stir in apple cider vinegar. Lastly, add in walnuts.
Pour into the bread loaf pan. Bake for 35-45 minutes.