Ingredients

• Nonstick baking spray, if using
• 1/3 cup oil (such as vegetable, peanut or light olive oil; see Cook's Note), plus more for greasing, if using
• 3 very ripe medium bananas, mashed until smooth
• 3/4 cup packed dark brown sugar or coconut palm sugar
• 1 teaspoon pure vanilla extract
• 1 cup plant-based milk (such as coconut, almond or cashew milk)
• 1 1/2 cups all-purpose flour
• 1/4 cup unsweetened cocoa powder (not Dutch-process)
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1 cup semisweet vegan chocolate chips (see Cook's Note)