Use a large mug so the cake has room to rise. No need to oil the mug; the cake should pull away from the sides as it bakes.
Serving: 1 mug cakeCalories: 353.98kcalCarbohydrates: 55.78gProtein: 17.63gFat: 27.98gSaturated Fat: 15.08gPolyunsaturated Fat: 1.22gMonounsaturated Fat: 5.31gTrans Fat: 0.45gCholesterol: 230.05mgSodium: 692.04mgPotassium: 739.41mgFiber: 10.05gSugar: 1.41gVitamin A: 728.07IUVitamin C: 0.14mgCalcium: 311.39mgIron: 1.23mgSugar Alcohol: 42.35gNet Carbs: 3.38g