Add oats and water to a medium pot, bring to a boil and reduce to a simmer. Allow to simmer for about five minutes.

Give the oats a stir and then add in the milk, sweet potato puree, maple syrup, brown sugar, and cardamom. Stir everything together and then turn off the heat.

Serve with 1 tbsp of walnuts and 2 tsp of raisins.

To store: Once the oats have cooled, pop into glass or Tupperware container and keep in the fridge until you are ready to eat!