Thanks - they are wickedly good. The recipe is by Fran Bigelow - I have her book, but I also found the recipe online
here. Cynthia, you should make these for the physicist..
Here's my version :
Gold Bar BrowniesFrom
Pure Chocolate by Fran Bigelow
1 cup Caramel Sauce (homemade or store-bought)
8 ounces (1 1/2 cups) whole almonds
12 ounces semisweet chocolate, finely chopped
4 ounces semisweet chocolate, cut into 1/4-inch blocks
1 1/2 ounces unsweetened chocolate, finely chopped
150 grams unsalted butter, room temperature (1 stick plus 2 tablespoons, or 10 tablespoons)
3/4 cup plus 2 tablespoons packed brown sugar
2/3 cup sugar
1 1/2 teaspoons pure vanilla extract
3/4 teaspoon instant espresso powder (I left this out)
3 large eggs
1 3/4 cups cake flour, sifted then measured
pinch salt (my addition - I think a tiny bit of salt always improves chocolate)
Position a rack in the middle of the oven and preheat the oven to 325F.
Line or grease a 9-by-13 inch sheet pan.
Have ready the Caramel Sauce. It can be used cold, directly from the refrigerator. (Pete makes big batches of caramel sauce, and we keep it in the freezer. It needs to be liquid for this recipe).
Place the almonds on another baking sheet and toast in the oven for 10 minutes. Let cool, then roughly chop. Set aside.
Melt the finely chopped chocolates (semisweet and unsweetened, but I used 56% and 70% dark) in a double boiler over low heat or in microwave. Remove when nearly melted and continue stirring until smooth. Allow to cool slightly.
In a mixer fitted with a paddle attachment, beat together the butter and two sugars until light and very fluffy, 3 to 5 minutes.
In a small bowl, stir together the vanilla and the espresso powder. Add to the butter mixture and beat to combine. Add the eggs, one at a time, beating well between additions and scraping the bowl several times. Pour in the melted chocolate and beat to combine.
Remove the bowl from the mixer and fold in the sifted flour by hand until no traces of white remain. Fold in the toasted almonds and the 4 ounces of semisweet chocolate chunks. The batter will be quite thick. Evenly spread the batter in the prepared pan.
Spoon the cold Caramel Sauce in tablespoon-size dollops over the top. Using a table knife drawn through the batter, swirl the caramel into the batter to marbelize. Bake for 45 minutes. When tested with a toothpick in the brownie portion (not the caramel), it will have moist crumbs.
Let cool in the pan 1 hour. Cut into squares and removed with a spatula. Store brownies in sealed plastic containers as long as a week, or freeze. Alternatively, scoff the whole lot.