In a bowl Add flour, White granulated sugar, Baking Powder and give it a good mix to get rid of any lump.
Add Milk, Oil and Vanilla extract and give a good mix to combine everything and set aside.
On a separate bowl mix Brown sugar, Melted butter with 1/4 tsp of Cinnamon powder and combine well to make a paste.
On another small bowl mix together Brown or White granulated sugar with 1/4 teaspoon of Cinnamon powder and give a quick mix.
First put half of the flour mixture into a microwave safe mug. Now spoon in dollops of Melted butter mixture. Add other half of flour mixture and repeat the same for Brown sugar paste.
Sprinkle Cinnamon sugar on top.
Put the mug in the center of the microwave and turn it on for 1 minute which can vary from microwave to microwave due to their models and set temperature and power.
Take out from the oven and wait few minutes before diving in. Enjoy!!