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1
Preheat the oven to 350.
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2
Combine all of the first six ingredients (flour, cocoa powder, white sugar, salt, baking powder, baking soda) in a mixing bowl.
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3
Add the next six ingredients (dark brown sugar, lime juice, milk, egg, oil, extract) into that mixture and mix with an electric/stand mixer until mixture is smooth, about 1-2 minutes.
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4
Add the coffee and mix for 2 more minutes at medium speed.
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5
Divide the batter between two greased/floured cake pans (9 inch diameter), and bake at 350 degrees F for 30 minutes.
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6
Remove cakes from the oven when they are done and let them cool (don't forget to turn off the oven).
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7
Meanwhile, break chocolate into chunks into a large bowl and heat whipping cream until just under a boil.
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8
Pour into the large bowl of chocolate chunks and whisk until mixture is smooth.
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9
Carefully remove the cake from one pan and set it onto wax or parchment paper.
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10
Spread 1/3 to 1/2 of the chocolate mixture onto it.
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11
Remove the second cake from the second pan and set it, bottom down, on top of the first layer.
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12
Spread the remaining chocolate mixture over the cake, and allow some of it to run over onto the sides.
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13
Chill in the refrigerator for an hour or overnight, and enjoy your next chocolate indulgence!
