Roasted Garlic without florets bay tenderloin

1/4 cup buttermilk 1 head roasted garlic , see note 1 tablespoon rice vinegar 1/4 teaspoon kosher salt 1/4-1/2 teaspoon cayenne pepper or 1/4-1/2 teaspoon[...]

1/4 cup sugar , plus 1 tablespoon sugar 1/4 ounce active dry yeast (2 1/4 teaspoons) 1/4 cup lukewarm water (105-115 degrees) 3 cups flour 1 tablespoon salt ,[...]

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[...]