Arrange the stretched bacon slices on a prepared baking sheet. Avoid overlapping the pieces. Place in the oven and allow to bake for 20 minutes. Wait till the bacon browns and crisps to your liking. Chop them into bits after removing from the oven. Put aside for later.
Chop your washed cauliflower into small chunks. Soften the cauliflower in boiling water. Leave for 5-10 minutes.
Drain the water and move the cauliflower to a blender. Add the garlic powder, butter, and sour cream then blend well for about 30 seconds until incorporated.
Spread the mixture into a large bowl. Combine half the cheese, chives, and coriander in the cauliflower mixture. Use a spoon to fold the ingredients together.
Place in the oven to bake. This can take around 15 minutes.
Take out from the oven. Add the bacon bits, chives, ground pepper, and the remaining cheese on top before baking again for 5 minutes more. When the cheese melts and turns golden, serve immediately.