Roasted Garlic Mashed Potatoes with chive

1 head garlic 1 tablespoon olive oil 2 lbs yukon gold potatoes 5 tablespoons butter 1 cup half-and-half 1 cup buttermilk salt and pepper chives 1 Set oven to[...]

2 lbs frozen cauliflower (2 one pound bags, you can even mix it up a bit for fun and get 1 bag just cauliflower and the other ) 1 head garlic 1 tablespoon[...]