Sarah Michelle Gellar co-founded a new business with an online store.
e-commerce is a transaction of buying or selling online . Providing or participating in online marketplaces , which process third-party business-to-consumer or consumer-to-consumer sales Foodstirs is an American cooking and lifestyle company that produces baking kits and mixes for sale online , by subscription , or in select stores . Sarah Michelle Gellar . In October 2015 , Gellar co-founded Foodstirs , a food crafting brand and e-commerce startup selling baking kits for children .