In a large pan over medium heat, add the oats and toast until slightly browned and fragrant. Remove oats from the pan and set aside
In a large mixing bowl, combine the pumpkin puree, toasted oats, butter and sugar. Stir in the eggs and buttermilk
In a separate bowl, add the flour, spices, salt, baking soda and baking powder. Whisk the ingredients together.
Add the dry ingredients to the wet ingredients and stir to combine using a spatula. Fold in the cranberries/raisins
Cover the bowl and chill in the fridge for 4 hours. Can be chilled overnight as well.
Preheat the oven to 375 and place a rack in the middle of the oven.
Line your muffin tin with paper muffin wrappers or grease the wells of the muffin tin.
Divide the batter evenly into the 12 wells. Roughly 2 heaping tablespoons of batter each.
Bake for 25-28 minutes or until a toothpick comes out clean.
Let cool in the tin for 5 minutes and then turn out and let cool completely on a wire rack.
The muffins, like most baked goods are best day of, but can be stored at room temp for up to three days.