Add oats, raisins, ground cinnamon and orange juice to a bowl and stir to combine. Cover the bowl and refrigerate overnight or for at least 6 hours.
If your yogurt is thick, add a bit of milk to loosen. You’re looking for a pour-able, double cream consistency.
To serve, divide the oats between bowls and stir enough of the milk and yogurt mixture to get a porridge-like consistency. Top with orange segments and nuts and serve cold or at room temperature.
Notes
Freshly squeezed orange juice tastes best here. Use with or without pulp/bits.