01 -
Preheat oven to 350°F (175°C). Grease and flour a 9-inch round cake pan or bundt pan.
02 -
In a bowl, whisk together flour, baking soda, baking powder, salt, and cinnamon.
03 -
In a large bowl, beat butter, oil, brown sugar, and granulated sugar until light and fluffy. Add eggs and vanilla, mixing well.
04 -
Stir in mashed bananas and sour cream until combined.
05 -
Gradually mix in dry ingredients until just combined. Fold in chopped pecans.
06 -
Pour batter into the prepared pan. Bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean. Let cool for 10 minutes before removing from the pan.
07 -
In a saucepan over medium heat, melt butter and stir in brown sugar. Cook for 2 minutes, stirring frequently.
08 -
Slowly whisk in heavy cream and bring to a gentle boil. Cook for 3-5 minutes until slightly thickened. Remove from heat and stir in vanilla and salt.
09 -
Pour warm caramel sauce over the cooled cake. Garnish with extra pecans and sliced bananas if desired. Slice and serve warm or at room temperature.