Heat the base: In a small pot, combine 1 cup rolled oats with 1¾ to 2 cups milk or water.
Add a small pinch of salt. Bring to a gentle simmer over medium heat, stirring occasionally.
Simmer to creamy: Cook for 4–6 minutes, stirring, until the oats are soft and the mixture is creamy. If it thickens too fast, add a splash more liquid.
Flavor it: Reduce heat to low.
Stir in 1 teaspoon cinnamon and ½ teaspoon vanilla extract. Mix well.
Add protein the right way: Remove the pot from heat. Whisk in 1 scoop (about 20–30 g) protein powder gradually to prevent clumps.
If it thickens too much, loosen with milk.
Sweeten: Stir in 1–2 teaspoons honey. Taste and adjust cinnamon or honey as needed.
Top and serve: Spoon into a bowl. Finish with sliced banana, a spoonful of nut butter, chopped nuts, or berries.
Drizzle a touch more honey if you like it sweeter.