Heat butter in a large heavy skillet over medium heat. Add jalapeno and cook, stirring, for 1 minute.
Add squash, salt and pepper. Cover the pan, reduce heat and cook until the squash is just tender, about 5 minutes. Remove the cover and add the cream to the squash; toss gently.
Raise heat and simmer the mixture uncovered, until the cream is almost evaporated and has coated the squash. Add chives and cilantro.
Submitted by: BABETTE CROSS