Cut 1 large head of cauliflower into florets
Steam or boil the florets until very tender, about 10 to 15 minutes
Drain well
Add the cauliflower to a food processor or blender
Add 2 to 4 tablespoons butter
Add 2 to 4 tablespoons milk, cream, or broth
Add salt and black pepper to taste
Add garlic, if desired
Blend or mash until smooth or desired texture
Taste and adjust seasoning
Serve warm