Cut the cauliflower into florets and add them to a microwavesafe bowl. Add 2 tbsp of water and cover with cling film.
Microwave for 5-8 min depending on your microwave untilcompletely cooked and tender. Drain the excess water and let sit uncovered foramin or two.
Add the cauliflower to a food processor and process untilfluffy. Add the butter, garlic powder and sour cream and process until itresembles the consistency of mashes potatoes
remove the mashed cauliflower to a bowl and add most of thechives, saving some to add to the top later. Add half of the cheddar cheese andmix by hand. Season with salt and pepper.
Top the loaded cauliflower with the remaining cheese,chives, and bacon. Put back into he microwave to melt the cheese or placecauliflower under the broiler for a few minutes.