I love lava cakes, but sometimes I just want a super-quick chocolate fix. This espresso chocolate cake in a mug recipe is a weeknight-worthy substitute that I make right in the microwave. I make cake in a mug at least once a month, especially if my husband and kids aren’t around for dinner and I’m craving something warm and sweet after dinner. This cake in a mug is over-the-top gooey and cleanup is as quick as throwing the mug in the dishwasher.
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