Melt the butter in a microwave. Preheat the oven to 220℃.
Combine the dry ingredients in a bowl, and mix well. You don't need to sift!
Add the ● ingredients into a separate bowl, and mix well.
Add the Step 3 mixture into the Step 2 mixture, and fold it in with a cutting motion. It's ok even if the mixture is still a bit floury at this point.
Pour the batter into the muffin cups, and bake in the oven for about 20 minutes, then they're done.
Story Behind this Recipe
I created this recipe because I wanted to eat muffins, which don't contain too much butter.
The blueberry juice overflowed while I was baking, so it's better to mix the blueberries into the batter so the result will look better... These muffins aren't too sweet, so add some more sugar if you have a sweet tooth!