Preheat your oven to 350°F (175°C) and grease an 8x8-inch (20x20 cm) baking dish with cooking spray or a small amount of melted coconut oil.
In a mixing bowl, combine the mashed bananas, melted coconut oil, pure maple syrup (or honey), almond milk and vanilla extract. Stir until the mixture is well combined.
In a separate bowl, whisk together the oat flour, baking powder, ground cinnamon (if using), and salt.
Gradually add the dry ingredients to the wet ingredients, stirring until you have a uniform batter.
Gently fold in the fresh raspberries and white chocolate chips into the batter. Be careful not to overmix; you want to distribute the raspberries and chocolate chips throughout the batter without crushing them completely.
Pour the batter into the greased baking dish and spread it evenly. Bake in the preheated oven for about 30 minutes, or until the edges are golden brown, and a toothpick inserted into the center comes out clean or with a few moist crumbs.
Allow the bars to cool in the baking dish for about 10-15 minutes before slicing them into squares. This cooling time helps them set.
Once cooled, serve your delightful Raspberry Banana bars. Enjoy the combination of fruity, coconut, and sweet white chocolate flavors!