In a mixing bowl, combine the 2 1/2 cups of non-dairy milk, 2/3 cup of chia seeds, and 2 tablespoons of sugar-free sweetener. Whisk the mixture until the chia seeds are evenly distributed.
Allow the mixture to sit for about 5-10 minutes to let the chia seeds absorb the liquid and begin to swell.
After the initial resting period, stir the mixture again to ensure there are no clumps of chia seeds for a smooth texture.
Cover the bowl or transfer the mixture to individual jars and refrigerate for at least 2 hours, preferably overnight.
Once the pudding has set, serve it in bowls or jars and top with fresh blueberries, cacao nibs, and hemp hearts.