This recipe creates a natural fruit jelly (fruit leather) without any added sugar, gelatin, or coloring by blending mango and strawberries separately into pastes and then simmering them slowly in a pot to reduce the moisture. Pour the mixture into molds and dry slowly in a low-temperature oven to create a healthy snack that retains the rich sweetness and tartness of the fruit, along with a chewy, elastic texture. Cutting it into bite-sized pieces and wrapping it in tape or individual packaging makes it a delicious fruit treat that's sure to be a hit as a gift.