Creating homemade garlic bread is simple. Just follow these steps:

1. Preheat Your Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Bread: Slice the loaf of bread in half lengthwise. Place both halves on a baking sheet, cut side up.
3. Mix the Garlic Butter: In a bowl, combine the softened butter, minced garlic, chopped parsley, salt, black pepper, and red pepper flakes (if using). Mix until well combined.
4. Spread the Mixture: Evenly spread the garlic butter mixture over the cut sides of the bread.
5. Bake: Place the baking sheet in the preheated oven and bake for 10-15 minutes, or until the edges are golden and the butter is melted.
6. Optional Topping: If desired, sprinkle grated Parmesan cheese on top during the last 2-3 minutes of baking for added flavor.
7. Slice and Serve: Once baked, remove from the oven, let cool for a minute, then slice into pieces and serve warm.

These straightforward steps will guide you in creating this incredible homemade garlic bread effortlessly.