Soak the oats in the yogurt for about 20 – 30 minutes, then preheat the oven to 200 °C
Add oil, egg, and sugar to the above. Beat well.
In a separate bowl, sift flour, salt, baking soda & baking powder together, then add this dry mixture to the above, mixing only enough to moisten all the dry ingredients. (may be a bit lumpy)
Add the frozen blueberries just enough to fold in batter.
Fill muffin tins which have been greased or lined with muffin papers until they are about 2/3 full.
Throw open the cupboard of possibility, the freezer of anything goes. Add a splash of this, a sprinkle of that, and a good dollop of winging it. Go Forridge.