Step 1

Preheat oven to 375º F. Grease a 12 cup muffin tin. Set aside.

Step 2

In a bowl combine brown sugar, baking soda, salt, vanilla and egg. Add in the buttermilk, mix until well combined.

Step 3

Add the flour. Stir until it is just combined and forms a dough.. Be careful not to over mix!

Step 4

Turn the dough onto a floured surface, and knead for about a minute. Roll the dough into a 12x24 inch rectangle.

Step 5

In a small bowl mix the brown sugar and cinnamon filling together. Spread the butter over the dough, and sprinkle with the brown sugar mixture.

Step 6

Start from the long side and roll tightly into a log. Cut into 2 inch pieces. Place each roll into the prepared muffin tin.

Step 7

Bake for 12-15 minutes, until they are puffed and golden brown.

Step 8

Remove from the oven and let cool for 5 minutes before removing from the pan.

Step 9

Meanwhile, prepare the icing. Mix together milk, sugar, and vanilla until well combined. Adjust the sugar and milk if necessary to get the right consistency.

Step 10

Drizzle the icing over the muffins and serve.