In a bowl, using an electric mixer, beat the eggs with the brown sugar, vanilla, and salt until smooth. At low speed, add the flour, butter, and chocolate. With a spatula, stir in two thirds of the nuts and spread the batter in the pan. Sprinkle with the remaining nuts. Bake for 40 minutes or until a toothpick inserted in the centre of the cake comes out with lumps and not completely clean. Let cool.
Caramel Sauce
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