Preheat oven to 180 degrees Celsius (350 degrees Fahrenheit).
Place the coconut oil in a large bowl and melt over a saucepan of boiling water or in the microwave (skip this step if using any other oil).
Once melted, add the milk to the same bowl along with the vinegar, maple syrup, vanilla, salt, ground almonds and oats.
Sift in the flour, baking powder and bicarbonate of soda.
Mix well, adding a tiny splash more milk if it’s looking too dry.
Add the fresh blueberries and fold in gently, to make sure you don’t crush them.
Transfer the mixture between muffin cases in a muffin tin.
Sprinkle over oats to decorate.
Bake in the oven for 20 minutes until risen and an inserted skewer comes out clean.
Tastes best when fresh, but keeps covered in the fridge for up to a few days.
Video
Notes
**You can alternatively use almond flour.Though these muffins do obviously taste best when fresh, they keep well covered in the fridge for up to a few days, and freeze well too. If you have just taken them out of the fridge of freezer, I'd recommend warming them up in an oven toaster if you have one.