Place 1 tablespoon of chia seeds (or Sabja seeds) in a small bowl with 1/4 cup of water. Let them soak for about 15–20 minutes until they become gelatinous and swell up.

Cut the watermelon into small chunks and remove as many seeds as possible. For a colder drink, you can chill the watermelon chunks in the freezer for 30 minutes before blending.

Add the watermelon chunks and fresh mint leaves into a high-speed blender. Blend on high until the mixture is completely liquid. Note: Do not add water, as the watermelon provides enough natural juice.

If you prefer a very smooth, clear juice, pour the mixture through a fine-mesh strainer into a pitcher. If you like the natural fiber, you can skip this step.

Stir in the fresh lime juice and a pinch of black salt (Kala Namak). The black salt perfectly balances the sweetness of the watermelon and aids digestion.

Place the soaked chia seeds at the bottom of two serving glasses. Pour the fresh watermelon juice over the seeds.

Stir well so the seeds are distributed evenly. Add ice cubes if desired and garnish with a fresh sprig of mint. Serve immediately for maximum freshness!