Place eggs, salt and milk, melted butter in a mixing bowl. Sift flour over the top and immediately beat into a loose dough using a wooden spoon or a hand or stand mixer until it bubbles.
6 medium eggs, 200 ml milk, 1 teaspoon salt, 20 g unsalted butter
Leave the dough to rest for about 10 minutes, this will allow the gluten to develop.
In a large saucepan bring water to boil. Add a little salt to it.
With your Spätzlemaker of choice, slowly pour in the dough and press the strands into the boiling water.
The Spätzle will rise to the top once they are cooked. Try to fish them out with slotted spoon. Do not try to make too many Spätzle at once, otherwise the dough might end up sticking to your saucepan.
The ready spätzle can be served straight onto the plate if you are planning to eat them straight away. If you want to make them ahead, you can blanche and shock the spaetzle in ice or cold water. This will stop them from cooking. Then when you are ready to serve them you can brown some butter in a frying pan and reheat the spätzle in them. (this is how chef's in German restaurants do it.)
1 tablespoon butter