Mix the dry ingredients: In a mason jar or small bowl, combine the rolled oats, protein powder, and cocoa powder.
Add the liquid: Pour in the oat milk and stir well until everything is fully mixed.
Blend for creaminess: Transfer the mixture to a blender and blend until smooth for that luscious, brownie batter-like texture.
Top with chocolate chips: Sprinkle the milk chocolate chips on top for added sweetness.
Chill overnight: Pour the blended mixture back into your jar or bowl, cover, and refrigerate for at least 6 hours or overnight.
Enjoy! Give it a quick stir in the morning and dig in. You can eat it cold or warm it up (it reminds me of eating a warm lava cake this way).
Notes
(1) You can adjust the overnight oat consistency depending on your preference by adding more or less oat milk. I'd say anywhere between 1/3 cup to 3/4 cups would work for this recipe and the oats would still be pretty sweet and delicious.(2) Store in airtight jars for up to 3–5 days in the fridge.(3) If too thick, stir in a splash of milk before eating.(4) Warm gently (~15–30 seconds) if you prefer a warm bowl but watch for jar safety.(5) Substitute milk of choice (dairy or plant) to suit dietary preferences.(6) Omit or adjust chocolate chips if you want lower sugar or less chunkiness.