To make a Cinnabon in a mug, start by preparing a microwavable mug. Spray it with cooking spray to prevent sticking.
Next, mix the dough. In a small bowl, combine 1/4 cup all-purpose flour, 1/4 teaspoon baking powder, 2 tablespoons unsweetened vanilla almond milk, 1 tablespoon maple syrup, 1/4 teaspoon vanilla extract, and 1 teaspoon oil or melted butter. Stir just until combined, but don’t overmix.
For the filling, whisk together 1 tablespoon brown sugar and 1/4 teaspoon ground cinnamon in another bowl. Sprinkle this mixture over the dough in the mug and swirl it into the batter using a knife.
Microwave the mug on high for about 1 minute and 25 seconds. Check after 1 minute and add more time if necessary.
While the cake cooks, make the glaze by mixing 6 tablespoons powdered sugar and 1 tablespoon whole milk. Adjust the consistency by adding more milk if needed.
Once the cake is done, carefully remove it from the microwave and drizzle the glaze on top. Enjoy your delicious Cinnabon-inspired treat directly from the mug or transfer it to a plate.