Spätzle
A loose egg batter scraped straight into boiling water, where it sets into small irregular noodles, then browned in butter. No rolling, no cutting, and a colander with big holes does the job of a spätzle press.
At a glance
Ingredients and method are in the app
Kitchen Pantri holds the full ingredient list and step-by-step method for Spätzle, checks it against what is already in your pantry, and adds anything missing to your shopping list. The app is free to use; you set up a Pantri account when you first open it.