In a medium-sized bowl, combine the chia seeds with your preferred milk. Stir vigorously and let it sit for at least 4 hours or overnight in the refrigerator.
In a separate bowl, whisk together Greek yogurt, cooled brewed coffee, honey or sweetener, and vanilla extract until smooth.
Layer the chia pudding and creamy coffee yogurt mixture into serving glasses, repeating until filled.
Dust the top with cocoa powder before serving to add elegance.
If not serving immediately, cover and refrigerate for an hour to meld flavors.
Notes
Adjust sweetness to preference and use small glasses for an elegant presentation. Store in an airtight container for up to 3 days, or freeze for up to 1 month.