While there may not be specific scientific studies on the flavor combination of Peanut Butter and Tomatoes on Toast, there is evidence supporting unexpected flavor pairings in general. The concept of flavor pairing is based on the idea that certain foods share chemical compounds that complement each other when combined. This phenomenon has been studied in various contexts such as wine tasting and culinary arts. By understanding the chemical components of different foods, chefs and food scientists can create unique dishes with surprising but harmonious flavors. So while Peanut Butter and Tomatoes on Toast may seem unconventional at first glance, there could be underlying chemical interactions that make this combination surprisingly delicious for some individuals.