The walnuts do add a nice crunch and nuttiness to this recipe, but it is the pure maple syrup that is clearly the star of this creamy maple walnut ice cream. Along with the chopped walnuts, you can add maple flakes to the ice cream, giving it a bit of extra crunch and even more maple flavor. This is a fantastic ice cream to serve with an apple crisp, cobbler, or pie, or enjoy it with a drizzling of maple syrup. You can also use more maple flakes or walnuts as a topping as well.