My favorite buns.

Cut the top with scissors and put butter and sugar.  Yummy!  I used Swedish Pearl Sugar that I bought at IKEA.  It's crunchy and sweet!

Adding pumpkin makes the texture very tender and moist, still chewy though.  You don't taste pumpkin really, taste just sweetness of it.  

I like to use a Japanese pumpkin which is sold as "Kabocha Pumpkin" at a store.   Cut in half, toast lightly, put salted butter and bite!  Mmm...