Mash the banana first: Add 1 ripe banana to a bowl and mash it with a fork until smooth. Add 1 cup Greek yogurt, ½ cup milk, 1 tablespoons maple syrup, ½ teaspoon cinnamon, and 1 teaspoon vanilla extract. Whisk until smooth and creamy, like a thick smoothie.
Add the chia seeds: Stir in 3 tablespoons chia seeds. Whisk for about 30 seconds to break up any clumps and help the seeds spread evenly.
Chill until thick: If you want, transfer the mixture to single-portion jars or leave it in the mixing bowl. Cover and refrigerate for at least 2 hours, or overnight, until the mixture turns thick and creamy.
Stir and add toppings: Before serving, stir the pudding to make it extra creamy. Add fruit, nuts, or a drizzle of maple. Enjoy it cold for breakfast or as a simple snack.
