Melt the butter.
Fit the Whisk tool to the machine.
Add Ingredients 1 (milk, butter, eggs, vanilla) into the Mixer bowl.
Attach the Mixer bowl to the machine and fit the splash guard.
Mix on speed Max for 1 minute.
Add Ingredients 2 (flour, baking powder, salt, sugar) to the bowl.
Mix on speed Max for 2 minutes.
Pre heat the waffle iron.
Spoon some of the batter onto the waffle iron.
Cook until golden brown.
Repeat until all the batter has been used.