Mix the cinnamon streusel by placing the flour, oats, sugars, and cinnamon into a shallow bowl and stir to combine. Add in the coconut oil and mix until crumbles form.
In a large mixing bowl, sift the flour and add the together the dry ingredients for the muffins.
In another bowl, whisk together the wet ingredients, plus the sugar, and let it curdle slightly.
Add the wet ingredients to the dry and stir with a spatula until smooth.
Preheat the oven to 180 degrees Celsius and prepare a muffin pan with 12 liners. Use a cookie scooper to scoop roughly 9 muffins.
Top the muffins with streusel and bake the muffins for 18-22 minutes.
- Remove to cool in the tray before removing, enjoy at room temperature or freeze.