The flavour combination of dark chocolate, dulce de leche and sea salt is not new. You might even say it’s a bit passé, but it could also be one of those things that become a classic, like chocolate and mint.
I had wanted thimble (aka. thumbprint) cookies, but I was also craving chocolate. And when my pal David at Circles and Squares Bakery tweeted about making dulce de leche brownies, the idea hit me.
This first batch is really a prototype – I made one pan and put the caramel into the thumbprints first, before baking, as you do when making the regular version with jam. This created a big oozing mess of melted caramel. Filling the prints as soon as the cookies come out of the oven works better – it melts just enough to smooth out, without creating too much of a river.
I also used 100% cacao chocolate, because that’s what I had on hand. It’s not readily available, but I don’t think I’d go below about 80% or the cookie will be way too sweet – otherwise the amount of sugar would have to be adjusted. And, I cheated and used dulce de leche from a jar, but the caramel is not hard to make.