This recipe is from The Minimalist Baker.

Combine:
2 cups all purpose flour
3/4 cups pastry flour

Add:
1 cup water (in tablespoons)

Let dough rest for 10 minutes.
 
Roll into thin sheets and cut into desired noodle shapes.
Boil in salted water, cooking to desired tenderness.

Watch more simple recipe tutorials with Jonas on YouTube
Please remember to like and subscribe!