Chocolate toffee cookies

I probably don't need to say anything besides "chocolate," "toffee" and "cookies," do I?

Oddly enough, these ended up being those cookies that sound great but look totally unimpressive and really don't go over that well right away. But later... later, a few hours or a day later, you pick one up and take a bite, and then you notice how awesome they are, how almost brownie-like, how rich and fudgy and delicious. And then you wonder where they all went, 'cause surely, there was a full plate here a minute ago. :)

Chocolate Toffee Cookies
From Smitten Kitchen

1/2 c flour
1 tsp baking powder
1/2 tsp salt
16 oz bittersweet chocolate, chips or chopped
1/4 c butter
1 3/4 c brown sugar
4 eggs
1 tbsp extract
5 1.4-ounce Heath bars, coarsely chopped (I used the same weight in fun-size bars -- in hindsight, the toffee-to-chocolate ratio was a bit off, so I might use more if I used the little ones next time)
1 c chopped walnuts
Sea salt for sprinkling (optional)

1. Whisk together the flour, baking powder and salt in a small bowl.
2. In another bowl, microwave the chocolate and butter, stirring and heating until smooth.
3. In a larger bowl, beat the sugar and eggs together until thick. Add in the chocolate, then the vanilla, then the flour mixture. Stir in the nuts and toffee.
4. Chill until firm, about 45 minutes. Optionally, form into logs and chill in plastic wrap, so you can slice and bake them later.
5. Drop by spoonfuls onto parchment-lined baking sheets (the parchment keeps the toffee from sticking to the pans). Sprinkle with sea salt.
6. Bake at 350 degrees for about 13 minutes, until the tops are dry and cracked. Cool on sheets (they'll continue to bake slightly as they cool).