Tried this for the first time this evening. Rather than melding together, the mustard seemed to dominate the flavors from the tarragon, rosemary and balsamic vinegar. Ended up adjusting by adding more tarragon and vinegar along with some plain yogurt to sort of cut the mustard. I love the idea of a mustard sauce and with do again with the changes. Thanks for sharing.
My family loved this recipe. So did I. It was easy to make and very flavorful. I used a spicey brown mustard as I didn't have the dijion on hand. I served it with oven roasted potatoes and a green salad. My boyfriend and I had a nice white wine along with it. Great recipe. Thanks for sharing!