Mash the banana: In a medium bowl or jar, mash 1 ripe banana until mostly smooth. A few small chunks are fine.
Whisk the wet ingredients: Add 1 cup milk, 1/2 cup plain Greek yogurt, 2 tablespoons peanut butter, 1/2 teaspoon vanilla, and a small pinch of salt.
Whisk until the peanut butter is fully incorporated.
Add chia and protein: Stir in 3 tablespoons chia seeds and 1 scoop protein powder (about 20–25 g), if using. Whisk well to prevent clumps.
Sweeten to taste: Taste the mixture. If you want it sweeter, add 1–2 teaspoons honey or maple syrup and whisk again.
Rest and stir: Let the mixture sit for 10 minutes, then stir again.
This step helps evenly disperse the chia seeds.
Chill to set: Cover and refrigerate for at least 2 hours, or overnight for best thickness. The pudding will thicken as the chia seeds absorb liquid.
Adjust texture: If it’s too thick in the morning, stir in a splash of milk. If too loose, add 1 teaspoon chia seeds and rest another 15 minutes.
Top and serve: Add banana slices, a drizzle of peanut butter, a few chopped peanuts, or a sprinkle of cinnamon.
Enjoy cold.