So rich and gooey! This cake is made completely from scratch-no mixes required. The secret to the fudgy tunnel is the addition of the nuts-don't be stingy with them! It's from Pillsbury Best of the Bakeoff.
Grease and flour a 12 cup bundt pan or 10 inch tube pan.
In large bowl, beat butter and sugar till fluffy.
Add eggs, one at a time, beating well after each addition.
Gradually add 2 cups powdered sugar, flour and cocoa.
Stir in nuts by hand.
Spoon batter into pan; spread evenly.
Bake at 350 F for 58-62 minutes.
Note: you won't be able to test for doneness since the filling is soft, so accurate temperature and timing is key.
Cool in pan 1 hour.
Invert on serving platter and cool completely.
In a small bowl, combine all glaze ingredients adding enough milk for desired spreading consistency.
Spoon over cake, drizzling down sides.
Store tightly covered.
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