I was a WASC baker for a long time I also wanted to get away from the doctored box mix and went scratch... Here is a very very good Chocolate Mud Cake recipe with variations I found on line that I am willing to share....
Best ever Mud Cake by Kel11
Chocolate Mud Cake
12.3oz dark chocolate pieces
8 oz butter
20.2 oz water
3 eggs
14.11 oz castor sugar
14.11 oz self raising flour
1t. vanilla bean paste (i added)
1T instant coffee (i added)
Truffle Mixture
4.2 oz dark chocolate pieces
3.5oz butter
10.5oz sifted icing sugar
4 tbsp double or whipping cream
Chocolate Glaze
7.9 oz dark chocolate pieces
5.5 oz double or whipping cream
Enjoy!
Here are some more alternatives using the same recipe
White Chocolate Mud Cake
Replace dark chocolate with white chocolate
Orange Mud Cake
Can be made using either white or dark chocolate
Replace water with freshly squeezed orange juice
Hazelnut Mud Cake
Omit 50-100 grams flour and replace with ground hazelnuts (depending on how nutty you like your cake)
Also add in 1/2 cup chopped hazelnuts
Lemon Poppy Seed Mud Cake
Replace dark chocolate with white chocolate
Use 400 ml water and 200 ml freshly squeezed lemon juice
Add a few drops of lemon essence and 1/4 cup poppy seeds
You may add some grated lemon zest if you like a bit of extra tang
Caramel Mud Cake
Replace dark chocolate with white chocolate
Replace castor sugar with brown sugar