About 5 minutes to whip up, but make sure to allow time to soften cream cheese and butter.
Preferably in a food processor, mix together the cream cheese, butter, garlic powder, white pepper, and salt. By hand, stir in the parsley and chives.
Best if made ahead so the flavors will blend. If refrigerated, bring out ahead so the cheese will be soft enough to spread.
If desired, the cheese may be formed into rounds to mimic actual boursin.