Mom's Carrot Banana Bread

Preheat oven to 350 degrees F (175 degrees C).

Grease two 4x8-inch loaf pans.

Combine flour, baking soda, baking powder, cinnamon, and salt together in a bowl.

Beat brown sugar and butter together in a separate bowl using an electric mixer until smooth and creamy.

Stir flour mixture, alternating with bananas, into creamed butter mixture just until batter is mixed; fold in carrots and walnuts.

Pour into the prepared loaf pans.

Bake in the preheated oven until a toothpick inserted in the center of a loaf comes out clean, 50 to 60 minutes.