Grease an 8-ounce mug with coconut oil, butter or cooking spray and set aside.
Combine all ingredients in a small spouted cup and mix until you have a nice, rich cake batter.
Transfer batter into prepared mug.
Sprinkle chocolate chips over the top and cook in the microwave for one minute or until set through and springy on top. All microwaves will vary a bit.
Enjoy as is, or top with whipped cream and fresh berries.
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Notes
*Monk fruit is an all natural, calorie free sweetener. It helps keep this recipe low in carbs and sugar. If you prefer to use something else, you can replace it 1:1 with any other type of granulated sugar.