▢2 c flour ▢½ Tablespoon salt ▢1 Tablespoon baking powder ▢¾ Tablespoon cardamom ▢1 granny smith apple cored and chopped ▢2 large eggs ▢½ c sugar ▢1 c milk ▢¼ c canola oil ▢1 Tablespoon vanilla extract Topping ▢¼ c butter softened ▢¼ c walnuts chopped ▢¼ c oats ▢⅓ c brown sugar ▢½ c flour ▢1 Tablespoon cinnamon