Toast the Crunch: In a dry pan, lightly toast the peanuts, black sesame seeds, and white sesame seeds over medium heat until fragrant. Set aside to cool.
Melt the Base: In a large nonstick pan, add the marshmallows and heat on low until they begin to melt, stirring constantly to avoid burning.
Mix in the Milk Powder: Gradually stir in the milk powder into the melted marshmallows. Mix until smooth and fully combined into a thick, sticky paste.
Add the Crunchy and Chewy Ingredients: Add the toasted peanuts and sesame seeds to the marshmallow mixture. Quickly fold in the chopped dried mango and cranberries.
Shape the Nougat: Transfer the nougat mixture to a parchment-lined tray. Press it down evenly into a 1-inch thick slab using the back of a spoon or another sheet of parchment paper.
Cool and Cut: Allow the nougat to cool completely at room temperature. Once set, slice into bars or squares and store in an airtight container.