This looks amazing can't wait to make them!!

Banana Whoopie Pies
2 1/4 cups all purpose flour
1 tsp baking powder
1/2 tsp salt
1/2 tsp ground cinnamon
1/4 cup butter, room temperature
1 1/4 cups sugar
1/4 cup vegetable oil
1 large egg
1 tsp vanilla extract
3/4 cups mashed banana (2 medium)

Preheat oven 350F. Line a baking sheet with parchment paper.
In a medium bowl, whisk together flour, baking powder, salt and cinnamon.
In a large bowl, cream together the butter and sugar until light. Beat in egg and vegetable oil, followed by vanilla and mashed banana. Add flour mixture and stir until just incorporated.
Drop 2 tablespoon balls (approx 1 1/2-inch balls) and bake for 12-14 minutes, or until cookies are lightly browned around the edges and “set” in the center.
Remove to a wire rack to cool.
Makes about 2 dozen cookies (1 dozen sandwich cookies).

Cream Cheese Filling
3 oz cream cheese, room temperature
4 tbsp butter, room temperature
1 tsp vanilla extract
1 1/2 – 2 cups confectioners sugar

In a medium bowl, beat together cream cheese and butter until smooth. Blend in vanilla and confectioners’ sugar until mixture is smooth and thick. Add additional confectioners’ sugar if mixture seems runny.