Mix all of the dry ingredients in one bowl and set aside.
In another bowl mix the butter, vanilla, buttermilk and beer.
Next take the beer mixture and pour it into the dry ingredients. Gently stir until you get a well blended batter. This will not look like a typical bread dough, but more of a batter.
Pour batter into prepared pan and sprinkle with a handful of additional oats.
Bake at 425 degrees for 30 minutes. After 30 minutes, reduce the heat to 400 degrees and bake for an additional 30 minutes. Turn the oven off but keep the bread inside. Open the oven and let bread finish cooling on the rack inside for another 30 minutes. Remove and let bread finish cooling. Serve with stews, chili's, and chowders. Or serve on it's own with a slather of butter and honey.