01 - In a medium saucepan, mix oats, milk, maple syrup or honey, vanilla extract, cinnamon, and sea salt.
02 - Bring mixture to a gentle simmer over medium heat, stirring occasionally to prevent sticking.
03 - Reduce heat to low and cook, stirring frequently, for 10 to 12 minutes until the oats are tender and the texture is creamy.
04 - Incorporate raisins and continue cooking for 2 to 3 minutes until they become plump.
05 - Remove from heat and stir in butter if using, to enrich the texture and flavor.
06 - Transfer to serving bowls and garnish with toasted nuts, extra maple syrup, and a pinch of nutmeg as desired. Serve warm.