Stir together butter, garlic powder, salt, and Italian herbs in a bowl until well combined.
Cut baguette in half, lengthwise.
Use a rubber spatula to spread the butter mixture in an even layer on both sides of the baguette.
Line a baking sheet with parchment paper or aluminum foil, then place both halves of the baguette on the sheet. If they are too long to fit, cut them in half.
Put baking sheet in the oven and bake for 10-12 minutes, until butter has fully melted and the baguette is browned at the edges.
Notes
Storage Tips: This garlic bread is really best eaten the same day you make it. But, if you have leftovers that you want to store, wrap them in foil or plastic wrap and put into the refrigerator for 1-2 days. Reheat in a toaster oven or air fryer before serving. You can also reheat in a 375-degree oven for 5-10 minutes. (Reheating in the microwave won’t give you the same crunch!)Expert Tips: Want to make a cheesy garlic bread baguette? Sprinkle grated parmesan cheese or shredded mozzarella cheese over the butter and bake as directed. If you like a softer garlic bread (or you are starting with a particularly crunchy baguette), put the two halves of the baguette back together after spreading with butter and wrap the whole thing in aluminum foil. Bake for 10-12 minutes, or until butter has melted.