Allow muffins to rest for 20 minutes before removing from baking tin and serving. Like many muffin recipes this is beyond easy ... the only prep you have to do is cook the pumpkin needed for the recipe. I like to steam the pumpkin in the Thermomix, but you can also steam it the conventional way, or use the microwave ... whatever is easier for you. I prefer not to bake the pumpkin as the flesh tends to dry out a little which does affect the level of moisture in the final batter. If using the Thermomix, then fill your ™ bowl with 1 litre of water, place 450g pumpkin cubes (it's a little more than the 400g needed for the recipe, but I have found that when the pumpkin is cooked and mashed the volume reduces to just over 400g) in your Veroma tray and steam 15 minutes / Veroma / speed 3, check for doneness and continue for another 3 or so minutes until fully cooked when tested with a skewer (the bigger your cubes the longer it will take to cook so keep them smallish). Whatever process you use ensure the pumpkin is completely cool before continuing with the recipe. And note, this step can be done up to two days ahead of making the recipe and kept in the fridge. Just remove 30 minutes before using to allow the pumpkin to lose it's chill from being refrigerated.