Put 1/2 cup of the oats in a blender and run it on high until the oats turn to a fine powder. Pour the powder into a small bowl. Do the same with a second 1/2 cup of oats. A food processor can handle the whole cup at once.
Line up the bags. Into each one, measure 1/4 cup whole oats, 2 tablespoons of the oat powder and 1/8 teaspoon salt.
Stir in a flavor from the list below, if you like. Seal the bags and keep them together in an airtight container.
To cook, empty one packet into a bowl, pour in 3/4 cup boiling water and give it a good stir. Wait 2 minutes. Want it thicker? Add less water. Want it thinner? Add a little more.
Notes
The powdered oats are the secret. They melt into the water and give you that smooth, creamy texture you get from store-bought packets.
No kettle? Stir the packet and 3/4 cup cold water together in a large microwave-safe bowl and microwave for 1 to 2 minutes. Use a roomy bowl so it doesn't bubble over.
Each packet holds about 6 tablespoons of oats. Teenagers and big appetites may want two.
Prefer one container? Mix the oats, oat powder and salt in a large airtight jar and scoop out 6 tablespoons per bowl.