Buttermilk Caramel Syrup

1 1/2 cups buttermilk

1 cup sugar

1 cup brown sugar

1/2 cup butter

1 tsp baking soda

1 tsp vanilla

 

In a large saucepan, bring buttermilk, sugars, and butter to a boil over medium heat. Remove from heat and whisk  in soda and vanilla. It will bubble up a lot. Hopefully you used a large saucepan like I told you. As it cools, the bubbles will go away.