Mash the banana: In a mixing bowl, mash one ripe banana until mostly smooth. A few small chunks are fine.
Whisk the base: Add Greek yogurt, vanilla protein powder, almond milk, vanilla extract, cinnamon, and a pinch of salt.
Whisk until creamy. Adjust with a splash more milk if it’s too thick.
Sweeten to taste: Stir in honey or maple syrup if you want more sweetness. Taste and adjust—remember the cookies and bananas will add sweetness, too.
Prep your layers: Lightly crush vanilla wafers or grahams.
Slice an extra banana if you like banana layers. Warm nut butter slightly so it’s drizzle-friendly.
Layer the cups: Spoon a layer of the yogurt mixture into each cup. Add a few banana slices, a sprinkle of crushed cookies, and a small drizzle of nut butter if using.
Repeat layers until cups are nearly full.
Top and chill: Finish with a spoonful of the yogurt mixture. Add a final sprinkle of granola or nuts for crunch. Cover and chill for at least 30–60 minutes to let flavors meld.
Serve: Enjoy cold.
Add fresh banana slices right before eating for the best texture and color.