Put the oats, amaranth, coconut and almond milks, and salt in a medium sized pot and bring to a simmer over medium heat, stirring constantly. Continue to simmer and stir until the oats break down, but there is still a little bit of pop left in the amaranth. Add more milk, as necessary to keep the consistency creamy and to prevent it from burning.In the meantime, heat up a little dab of coconut or ghee in a frying pan and add the apples in the pan. Drizzle over the lemon juice, water, and maple syrup, and sprinkle in the cinnamon. Give the pan a shake to incorporate the liquids with the cinnamon, without disturbing the apples too much. Put a lid on the pan and simmer on medium-low heat until the apples are soft but still retain some of their shape.If you want to top it with flaked coconut: while the oats and apples are cooking, put the coconut in a pan over medium-low heat and toast until golden brown. Remove from the head immediately.To serve: Spoon the oatmeal into bowls and top with the soft, sweetened apples and some toasted coconut.