1. Whatever your favorite chocolate is.
2. Whatever kind of nuts you love.
Melt the chocolate in a double boiler. Mix in however many nuts you want. Pour over a cookie sheet lined with waxed paper. Spread as thin as you want. Throw it in the fridge so that it will harden quickly then break into chunks and try to share before you eat it all! It's that simple, really.
An easy way to make this look extra fancy is to take a contrasting white chocolate, melt it, put it in a pastry bag (or plastic baggie with a hole cut in the corner), then drizzle over the top of the bark.
White chocolate with peppermint pieces (chopped up candy canes actually.) Yum!!