moist upside down pear cake

• 2 Pears (peeled, cored and cut into 1/4 inch thick slices), medium

• 2 Eggs, large

• 1 3/4 cups All-purpose flour

• 1 tsp Baking powder

• 1/2 tsp Baking soda

• 1 1/4 cup Brown sugar, packed light or dark

• 1/4 tsp Cinnamon, ground

• 1/4 tsp Salt

• 1 tsp Vanilla extract, pure

• 1/4 cup Vegetable oil

• 1 Pecans

• 10 tbsp Butter, unsalted

• 3/4 cup Sour cream, full-fat