In a mug, combine as one every single dry fixing (flour, sugar, heating powder, and salt).
Liquefy margarine in a microwave-safe bowl.
Add dissolved margarine, milk, and vanilla concentrate to the dry fixings, blend until consolidated. At that point, add sweets sprinkles, blend. The combination will fill about a portion of the mug. It's alright when the cake will be heated, the mixture will rise.
Cook a mug cake in a microwave for 70 seconds permit cooling in a microwave for 1 moment. At that point, check in the event that it set, assuming no, cook for another 15-30 seconds.