Mix dry oatmeal ingredients together. Divide heaping 1/3 cup portions between 12 snack bags or small containers. Add desired mix-ins (see ideas in Notes). Label bags. Store in a cool dry place for up to several months.

Hot Water Method: Add oatmeal packet contents to a bowl and stir in 2/3 cup boiling water. Rest for a few minutes, until most of the water has absorbed, before eating.

Microwave Method: Add oatmeal packet contents to a bowl and stir in 3/4 cup water (or use milk for a creamier option). Cook for 1 or 1.5 minutes, until most of the liquid has absorbed.

Serve topped with additional sweetener, if needed, and a splash of milk.