I adapted this recipe from a NYTimes recipe with some twists which I have marked. This is so easy and tasted great . Here is what I did.
60 Grams Butter .
400 Grams Dark Chocolate - I used Morde.
1 Can Condensed Milk - 400 Grams.
1 Tablespoon Orange Zest ****
2/3d Cup Chopped Nuts.
1 Shot Espresso Coffee. ****
1/2 Teaspoon Fresh Vanilla.****
1.Butter an 8-inch-square baking pan. Line with parchment or wax paper, letting edges of paper hang over sides of pan.
2. In top of a double boiler or a metal bowl set over (not resting in) simmering water, combine all ingredients except nuts. Mix just until melted and well combined. (Alternatively, use a microwave on low power to melt ingredients, stopping every 10 to 20 seconds to mix well.) The mixture should be heated as little as possible. Mix in nuts, if using.
3. Scrape mixture into prepared pan. Refrigerate until set, about 4 hours or overnight. Lift fudge on paper out of pan and use a large knife to cut into squares. As this is a gooey fudge and not a hard one you wont get perfect squares , which is okay.
**** Not in the recipe but I think these ingredients are the real taste makers here.