Sapa Chestnut Cake (Bánh hạt dẻ)

Bánh hạt dẻ is a popular Vietnamese snack originating from the mountainous Sapa region. It's made by filling a pastry shell with ground local chestnuts that are lightly sweetened, then fried in oil until golden brown and flaky. This popular snack is regularly sold at most street food stalls in the region, but it can also be bought in boxes and prepared in the comfort of your own home.