I absolutely love mashed potato, with loads of butter and milk and a little mustard! How about you?
I love mashed potatoes but never heard of them with mustard. You usually use cream, garlic and butter.
The kind of mustard I use is the wholegrain variety. It really adds a nice hint of flavor. Garlic is really good too. Gosh, you could put anything in mash and I'd love it!
Yeah, you really see people use it around the holidays like Thanksgiving and Christmas. I would use it with other dishes too 
A Japanese friend of mine had no clue how to make mashed potatoes, so I had to teach her. Seemed strange, as I grew up with that food.
Yeah, but then again I met she can make things that are strange to us. They do sell frozen mashed potatoes in the store as well!
She can make lots of things I had no clue about, you're right. I have tried the pre-made mash in the chill cabinet of the store but didn't much like it.
There is a French spin on it where they add egg yolk for something called Duchess potatoes.