Just made this and it turned out lovely. Yes, it made chocolate swirls but that's what chocolate brioche is supposed to look like! It's a small loaf, even in my 2lb bread machine. But it's just like brioche in Europe and I'll be making it again. Thanks!
I prepared this in the bread machine and then baked it in the oven. It had a very nice, soft texture with a mixture of swirls and chips.