Chocolate Chip Banana Whoopie Pies

Name: Chocolate Chip Banana Whoopie Pies
Prep time: 30 min
Cook time: 15 min
Total time: 45 min
Cuisine: American
Ingredients: 320 grams all-purpose flour (2 1/2 cups); 1/2 teaspoon baking soda; 1/2 teaspoon baking powder; 1/2 teaspoon ground cinnamon; 1/8 teaspoon fine sea salt; Pinch ground nutmeg; 100 grams unsalted butter, softened; 100 grams granulated sugar (1/2 cup); 100 grams light brown sugar (1/2 cup); 250 grams overripe bananas, mashed (8 3/4 ounces; about 2 1/2 large bananas); 60 grams sour cream (1/4 cup); 1 large egg, at room temperature; 1/2 teaspoon vanilla bean paste; 85 grams miniature chocolate chips (1/2 cup); 225 grams cream cheese, softened (8-ounce package); 50 grams unsalted butter, softened (4 tablespoons); 2 teaspoons ground cinnamon; 1 teaspoon vanilla bean paste; 135 grams confectioner’s sugar (1 cup), plus more to adjust consistency