Preheat oven to 350F (175C). Roast garlic: cut top 1/2 inch off garlic head, drizzle with 1 teaspoon olive oil, wrap in foil, and bake for 40 minutes. Squeeze out roasted garlic cloves.
In a bowl, combine roasted garlic, yeast, warm water, flour, sugar, olive oil, salt, and parsley. Mix into a thick batter, adding water or flour as needed. Knead for 4-5 minutes until smooth.
Let dough rest in an oiled bowl for 25-30 minutes until doubled. Divide into 12 portions, roll into 10-inch ribbons, and tie into knots.
Place knots on parchment-lined baking sheet, let rest for 15-20 minutes. Bake for 20-25 minutes until lightly browned.