This is the cake I made back in 2000
[re-scanned from an old photocopy]
1-1/3 cups unsalted butter, at room temperature
• Immediately pour the batter into the prepared pans, and bake for approximately 25 minutes at 350F, or until the cakes test done with a skewer, spring bake when lightly touched in the center, and begin to pull away from the sides of the pans.
• Cut the butter into 2-tablespoon-size bits.
• Scrape down the sides of the bowl from time to time.
• Do not spread the top cake layer with the mocha filling.