In a bowl combine the oats, flour, sugar, salt, and chilled cubed butter
Rub between your fingers or a pastry blender until you have a crumbly texture.Tip - you can also use a food processor and pulse it all for just a few seconds
Place it in the fridge to keep it chilled while you prepare the batter.
In a bowl, combine flour, baking powder, baking soda, salt, and pumpkin spice - set aside.
In the bowl of a stand mixer with whisk attachment whip the eggs with the sugar until light and foamy
Add the pumpkin puree, buttermilk, and vanilla extract
Finally, add the flour mixture and combine well.
Divide the batter between the muffin liners and top with the chilled streusel
Bake on the middle rack for 18 to 20 minutes or until a skewer inserted comes clean.
Cool on a wire rack for 10 minutes before serving.
The nutrition information and metric conversion are calculated automatically. I cannot guarantee its accuracy. If this data is important to you please verify with your trusted nutrition calculator. Thank you