Out-of-school-time programs serve snacks to millions of children annually. State and national snack policies endorse serving more-healthful options, such as fruits, yet often allow less-healthful options, such as cookies and chips, to be served simultaneously. To date, no studies have examined the choices children make when provided with disparate snack options in out-of-school-time programs. An experimental study with randomized exposures was conducted that exposed children (5 to 10 years old) to the following conditions: whole or sliced fruit; whole/sliced fruit, sugar-sweetened snacks (eg, cookies) and flavored salty (eg, nacho cheese−flavored tortilla chips) snacks; and whole/sliced fruit and less-processed/unflavored grain snacks (eg, pretzels), during a 2-week period representing 18 snack occasions (morning and afternoon) during summer 2013.