Heat the base: In a small saucepan, combine 1 cup milk with 1/2 cup rolled oats and a pinch of salt.
Bring to a gentle simmer over medium heat, stirring occasionally so it doesn’t stick.
Add flavor: Stir in 1/2 teaspoon cinnamon and 1/2 teaspoon vanilla extract. If using lemon zest, add 1/2 teaspoon now. This infuses the oats as they cook.
Cook to creamy: Simmer for 4–6 minutes, stirring often, until the oats are soft and the mixture is thick but still spoonable.
Stir in protein: Remove the pan from heat.
Whisk in 1 scoop vanilla protein powder. If the oats get too thick, add a splash of warm milk to loosen. You want a creamy, not pasty, texture.
Add blueberries: Fold in 1/2 to 3/4 cup blueberries.
If using frozen, they’ll cool the oats slightly and turn them a pretty purple—just warm through for 30–60 seconds.
Optional boosters: Stir in 1 teaspoon chia seeds or 1 teaspoon ground flaxseed for extra fiber and body. Let sit 1 minute to thicken.
Sweeten to taste: Drizzle 1–2 teaspoons maple syrup or honey if you like a sweeter bowl. Taste first—the berries and vanilla might be enough.
Top and serve: Spoon into a bowl and finish with a small dollop of nut butter and a sprinkle of sliced almonds for crunch.
Serve warm.