Place 30g of butter into your thermomix bowl and cook for 2 minutes, 60 degrees, speed 1 to melt.
Add the plain flour, baking powder, caster sugar, eggs and milk to the Thermomix bowl and mix for 10 seconds on speed 4. Scrape down the sides and mix for a further 10 seconds on speed 4 to combine.
Let the pancake mixture sit for 20 or so minutes - if you can.
Preheat a large non stick frying pan over a medium high heat and add a little of the extra butter to coat the pan.
Pour the pancake mixture into the pan to create 4 pancakes and cook for approximately 2 minutes or until bubbles begin to form. Flip the pancake and cook for a further one minute.
Transfer the cooked pancakes to a plate (or thermoserver to keep warm) and repeat until you have used all of the mixture.