heat oven to 350, and use cake goop to lightly coat the bundt pan
whisk flour, all the spices, baking powder and baking soda and salt
in a stand mixer, combine wiht paddle attachment the brown sugar, butter, and olive oil. let it get light and fluffy (a few minutes at medium speed).
add each egg and blend after each, add pumpkin puree and sour cream
fold in dry ingredients, make sure it all gets mixed up
pour batter into pan, knock on counter to make sure the bottom is settled
bake for 50-60 minutes, until tester comes out clean