In Denmark, the golden kringle (pretzel) is an old guild symbol that often hangs outside bakeries. Our sweet version uses browned butter for deeper, nutty flavor.
To make 1 cup sour milk, place 1 tablespoon lemon juice or vinegar in a glass measuring cup. Add enough milk to make 1 cup total liquid; stir. Let stand for 5 minutes before using.
To Store: Layer cookies between sheets of waxed paper in an airtight container; cover. Store at room temperature for 3 days or freeze for up to 1 month.