Use a spiralizer to get these perfectly shaped noodles.
For a fun twist, instead of boiling the potato noodles you can toss them with two tablespoons vegetable oil, sprinkle with salt and divide between two large baking sheets. Bake at 400°F for 20 minutes, tossing carefully with a spatula and rotating the pans after 10 minutes. The potato noodles will be crisp on the outside and tender on the inside.
To make it vegan, replace the butter with vegetable oil and omit the egg. Replace with shelled edamame or sliced tofu if you like.
Find it online: https://honestcooking.com/30-minute-potato-miso-ramen/