This document summarizes market research on a proposed new McDonald's product that would allow customers to design their own hamburgers by choosing ingredients themselves in a self-service format. Researchers surveyed 15-35 year old men and women in Buenos Aires about their McDonald's eating habits, preferred burger ingredients, sauce preferences, and how much they would pay for the customizable burger product. The conclusion is that while 47.06% of respondents were interested in the proposed self-service concept, the majority indicated they would not purchase the new product.