Barriers to healthy eating and active living are at the heart of the obesity epidemic. This study focuses on a key factor underlying healthy eating: home food preparation. Preparing food at home entails a sequence of steps from obtaining food, to planning and cooking or preparing meals, to finally serving and eating the meal. Many strategies to curb obesity in children focus on eliminating processed and fast food from the diet, as well as improving access to fresh produce and other healthy ingredients. A collective ability to regularly and reliably prepare healthy food at home is implicit in these and other prevention strategies. Little research, however, has grappled with the phenomenon that there has been a generational loss of home food preparation ability over the past few decades. What is urgently needed is to design effective, enticing, and scalable interventions to improve home food preparation practices across diverse groups.