In a large mixing bowl, combine Greek yogurt, maple syrup (or honey), vanilla extract, and almond milk. Whisk until smooth and creamy, about 3–4 minutes.

Select a serving vessel—trifle bowl, mason jars, or shallow baking dish—and ensure it's clean and dry.

Layer the yogurt mixture in the bottom of your dish, followed by sliced bananas, and then a layer of whole grain cookies. Repeat until all ingredients are used, finishing with yogurt.

Cover with plastic wrap and refrigerate for at least 2 hours for flavors to meld and cookies to soften.

Before serving, add extra banana slices and crushed cookies on top for garnish.