Preheat oven to 400ºF
Drizzle garlic bulb with olive oil and sprinkle with salt. Wrap in foil and and roast for 30 minutes.
Set garlic aside to prepare your butter mixture. To prepare the mixture, put softened butter into a bowl with parsley, olive oil, red pepper flakes, parmesan, and a generous pinch of salt and pepper. Mash the mixture together with a fork.
Remove the roasted garlic from the bulb and mix it into the butter and cheese mixture until you achieve a smooth consistency.
Slice your baguette in half, long-ways and spread a generous amount of your garlic butter mixture onto each half. Top with extra parmesan
Bake for 10-12 minutes, or until golden brown. Slice it up and enjoy!