Combine amaranth seeds and water in a saucepan. Bring to a boil over medium heat, then lower heat to a simmer and cook, stirring, until creamy, about 20-25 minutes. Be sure to stir constantly the last five minutes of cooking (porridge will sputter). If porridge seems thick, add more water.
Stir in fruit, raw honey, cinnamon and coconut milk before serving.