Heat the oven to 350°F. Put 9 paper liners in a muffin tray. If muffin liners are unavailable, spray the holes with cooking spray.
60-second oat blend makes flour.Blend baking powder, sea salt, and ground cinnamon for 10 seconds to combine.
Blend eggs, unsweetened applesauce, maple syrup, avocado oil, and vanilla in a large bowl. Add wet ingredients and whisk.
Sprinkle oats or chopped nuts on muffin tops. Bake the muffins on the center rack of the preheated oven for 20–25 minutes until golden brown and clean.
Baking muffins with a digital thermometer. Baked at 190°F+. Add a thermometer to the center of a muffin and wait until the numbers stop moving for an accurate reading.
Cool applesauce oat muffins to room temperature before removing liners. Peeling heated muffins loses some muffin to the paper.