I *LOVE* a good chocolate cake and this is one of my favorites!
Quick Tunnel of Fudge Cake
Source: Chocolate from the Cake Mix Doctor by Anne Byrn
1 1/2 cups milk
1 pkg.(3.4 oz) chocolate fudge pudding and pie filling mix (not instant)
1 cup semisweet chocolate chips
1 Tbsp. butter
vegetable oil spray for misting the pan
flour for dusting the pan
1 pkg (18.25 oz.) devil's food cake mix with pudding
1/2 cup vegetable oil
1/2 cup sour cream
1/2 cup water
4 large eggs
1 tsp. pure vanilla extract
2 cups finely chopped walnuts
Place the milk in a medium size saucepan and whisk in the pudding mix. Cook, stirring, over medium heat until the mixture comes to a boil, 4-5 minutes. Remove the pan from the heat and stir in the chocolate chips and butter. Stir until the pudding is smooth and thickened and the chocolate has melted. Set the pan aside.
Place a rack in the center of the oven and preheat the oven to 350 deg. F. Lightly mist a 12 cup Bundt pan with vegetable oil spray, then dust with flour. Shake out the excess flour. Set the pan aside.
Place the cake mix, oil, sour cream, water, eggs, and vanilla in a large mixing bowl. Blend with an electric mixer on low speed for 1 minute. Stop the machine and scrape down the sides of the bowl with a rubber spatula. Increase the mixer speed to medium and beat 2 min. more, scraping the sides down again if needed. The batter should look thick and well combined. Fold in the walnuts, making sure they are well distributed throughout the batter.
Reserve 2 cups of the batter. Pour the remaining batter into the prepared pan. Spoon the pudding filling in a ring on top of the batter, making sure it does not touch the sides of the pan. Spoon the reserved batter over the filling, smoothing it out with the rubber spatula. Place the pan in the oven.
Bake the cake until it springs back when lightly pressed with your finger and is just starting to pull away from the sides of the pan, 45 to 50 minutes. Remove the pan from the oven and place it on a wire rack to cool for 20 minutes. Run a long, sharp knife around the edge of the cake and invert it onto a rack to cool completely, 20 minutes more.
Meanwhile, prepare chocolate icing.
Place the cake on a serving platter and pour the warm icing over it. Let the cake rest for 10 minutes before slicing.
Slice and serve.
* Store this cake, wrapped in aluminum foil or plastic wrap, or in a cake saver, at room temperature for up to 1 week. Or freeze it, wrapped in foil, for up to 6 months. Thaw the cake overnight in the refrigerator before serving.
Her note: This cake contains a lot of walnuts simply because that's how Ella Rita Helfrich created it. If you want to cut back to 1-1/2 cups, that's fine. Just make sure the nuts are finely chopped so they don't interfere with the crumb of the cake. You can do this easily in a food processor or with a good sharp knife and a cutting board.
Pour your favorite chocolate glaze over the cake, or Martha's Chocolate Icing as I recommend here. Or just dust it with some confectioners' sugar and leave it as is. With the pudding inside, this cake needs little adornment. Note that I call for regular pudding mix here; not the instant kind."
MARTHA'S CHOCOLATE ICING
1 cup granulated sugar
5 Tbsp. butter
1/3 cup whole milk
1 cup semisweet chocolate chips
Place the sugar, butter, and milk in a medium-size saucepan over medium-high heat. Stir until the mixture comes to a boil, 3-4 min. Still stirring, let the mixture boil until the sugar dissolves, 1 minute. Remove the pan from the heat.
Stir in the chocolate chips, and continue to stir until the mixture is smooth and the chocolate has melted.
Spread the icing over the cooled cake or cupcakes of your choice.
My notes: I usually leave the nuts out altogether. I like them, but prefer the pure chocolate. I also usually skip the icing and use just a bit of powdered sugar over a slice or eat it plain.