Stir the base: In a jar or bowl, whisk together the milk, sweetener, vanilla, and salt until smooth. Add the chia seeds and stir well so no clumps form.
Add the yogurt: Stir in the Greek yogurt until fully combined and creamy. Scrape the sides and bottom so everything mixes evenly.
Rest and re-stir: Let the mixture sit for 10 minutes, then give it another strong stir.
This step helps prevent chia clumps and creates an even texture.
Chill: Cover and refrigerate for at least 2–3 hours, or overnight for best thickness. The chia seeds will swell and set the pudding.
Taste and adjust: Once set, taste and add a touch more sweetener or a splash of milk if it’s thicker than you like.
Top and serve: Add berries, banana, nuts, or a spoon of nut butter. Enjoy cold.