Preheat oven to 350F. Brush a 12 hole standard muffin tin with melted butter.
Combine Dry ingredients in a bowl and give them a quick stir to combine.
Whisk Wet ingredients in a bowl until combined.
Pour Wet into Dry ingredients. Mix until combined.
Spoon the batter into the greased muffin tray
Bake in the oven for 20 minutes or until the top is golden brown.
Remove muffin tray from the oven. Brush tops with melted butter. Cool for 5 minutes then remove muffins onto a rack.