Heat the oven: Preheat then oven to 150°C. Finely mince your garlic and parsley. Mix with your softened butter. Slice baguette, but not all the way through. Focus on achieving a 1-inch thickness. Generously spread your garlic butter mixture into the baguette crevices.
Bake in the oven: Cover your baguette in foil and place in oven for 10 minutes. Remove from oven and take off the foil. Bake for an additional 1-2 minutes until the baguette is crispy.