Add muffin liners to a muffin pan. Spray the muffin liners VERY WELL. They are low fat so have a tendency to stick to liners. I recommend silicone liners or a silicone muffin pan if you have it.
Add all of the wet ingredients to your blender or food processer and blend until well combined/pureed. Add dry ingredients and blend for ~20 seconds, scrape the sides, then 20 more seconds. You want to do your best to not overmix the batter.
Melt coconut oil for topping. Add remaining topping ingredients to the bowl and combine.
Pour batter into liners. Top with oat topping. Bake ~18 minutes.