Preheat Oven: Preheat oven to 350°F (175°C). Grease and line a 9×5-inch (23x13cm) loaf pan.
Mix Dry Ingredients: In a bowl, whisk together flour, baking soda, baking powder, and salt.
Mix Wet Ingredients: In another bowl, whisk melted butter and sugar until combined. Add eggs, mashed bananas, vanilla, and yogurt, mixing until smooth.
Combine: Gently fold in the dry ingredients until just combined. Avoid overmixing.
Add Chocolate Chips: Stir in the chocolate chips, reserving a few to sprinkle on top.
Bake: Pour batter into the prepared pan, sprinkle extra chocolate chips on top, and bake for 50–60 minutes, or until a toothpick inserted in the center comes out clean (a few moist crumbs are fine).
Cool: Allow to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.
