Bring cider, 1/4 cup water and salt to a boil in a small, heavy saucepan over medium-high heat. Stir in oats. Reduce heat to medium and cook for 5 minutes, stirring occasionally.
Place pecans in a small, dry skillet over medium heat and cook, stirring, until lightly toasted and fragrant, 1 to 2 minutes.
Transfer to a small bowl.
Remove pan with oatmeal from heat; stir in milk. Spoon oatmeal into a bowl, top with pecans and serve.