Prep Time::10 mins
Cook Time::25 mins
Cool Time::10 mins
Total Time::45 mins
Servings::16 servings
Ingredients
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1 1/4 cups all-purpose flour
3/4 teaspoon cream of tartar
1/2 teaspoon baking soda
1/4 teaspoon salt
1/4 teaspoon ground cinnamon
1/8 teaspoon ground nutmeg
1/2 cup unsalted butter, softened
1/2 cup white sugar
1/4 cup firmly packed brown sugar
1/2 cup mashed banana
2 teaspoons vanilla extract
Cinnamon Sugar
1 tablespoon white sugar
1/2 teaspoon ground cinnamon
Directions
Preheat the oven to 350 degrees F (175 degrees C). Line an 8×8-inch square pan with enough parchment paper to have overhang on all sides.
Whisk flour, cream of tartar, baking soda, salt, 1/4 teaspoon cinnamon, and nutmeg together in a bowl.
Beat butter, 1/2 cup white sugar, and brown sugar in a large bowl with an electric mixer until light and fluffy. Beat in banana and vanilla extract on low speed until thoroughly combined; mix in flour mixture just until dough comes together. Using lightly floured hands, press dough firmly and evenly into the bottom of the prepared pan.
Whisk together the 1 tablespoon white sugar and 1/2 teaspoon cinnamon; sprinkle cinnamon sugar evenly over the dough.
Bake in the preheated oven just until the dough in the center of the pan feels set when lightly touched with a finger, about 25 minutes.
Let bars cool in the pan for 10 minutes before removing to a wire rack to cool completely. Cut into 16 bars.