Microwave Coffee Mug Cake

Name: Microwave Coffee Mug Cake
Ingredients: 1 Egg; 1/4 cup (60 ml) Milk; 1/4 cup (60 ml) Vegetable oil; 1/2 cup (70 g) All-Purpose Flour; 2 tsp (4 g) Instant Coffee; 1 tsp (5 g) Baking Powder