The anchovies reminded me of this dish I had at The Stinking Rose in San Francisco. When I had it, there was a lot more anchovies than in the description, and it was delicious.
From their menu:
"Bagna Calda
Garlic Soaking in a hot tub. Oven roasted in extra virgin olive oil & butter with a hint of anchovy.
Wonderful for spreading on bread (included). Served in an iron skillet."