Whisk the wet base: In a medium bowl or jar, whisk 1 cup milk, 1/2 cup plain Greek yogurt, 1–2 tablespoons maple syrup (to taste), and 1 teaspoon vanilla extract until smooth.
Add the protein powder: Sprinkle in 1 scoop (about 25–30 g) vanilla or unflavored protein powder.
Whisk thoroughly so there are no clumps. If it thickens a lot, add a splash more milk.
Spice it up: Stir in 1–1.5 teaspoons ground cinnamon, a tiny pinch of nutmeg if using, and a pinch of sea salt. Taste the mixture now—this is your chance to adjust sweetness and cinnamon intensity.
Stir in chia: Add 3 tablespoons chia seeds.
Whisk well for 30–45 seconds to evenly distribute the seeds and prevent clumping.
Rest, then whisk again: Let the mixture sit for 10 minutes, then whisk once more. This second stir keeps the seeds from sinking and ensures a consistent texture.
Chill: Cover and refrigerate for at least 2–3 hours, or overnight. It will thicken into a creamy pudding.
Finish and serve: If it’s thicker than you like in the morning, loosen with a splash of milk and stir.
Top with a light sprinkle of cinnamon and a dusting of coconut sugar for that snickerdoodle vibe. Enjoy cold.