The white stuff in Toblerone is nougat. It’s a sweet and chewy confection made from sugar, honey, nuts (usually almonds), and whipped egg whites. This nougat is mixed with other ingredients like chocolate and sometimes almonds in Toblerone, giving it its delightful taste and unique texture. The nougat’s addition offers a pleasant balance to the rich chocolate and nutty flavors, enhancing the overall experience of enjoying a Toblerone chocolate bar.