Preheat your oven according to the instructions on the French bread packaging. Typically, it would be around 375°F (190°C).

In a small saucepan, melt the unsalted butter over medium-low heat.

Add the finely chopped garlic to the melted butter and sauté for 1-2 minutes until the garlic becomes fragrant. Be careful not to brown the garlic.

Season the garlic butter with salt and pepper to taste. Remember that the French bread will also absorb some of the flavors, so you can go for a slightly bolder taste.

Stir in the finely chopped fresh parsley into the garlic butter mixture, infusing it with a burst of vibrant green freshness.

Take the rustic loaves of French bread and cut them into slices, keeping them attached at the bottom, like a fan, but not all the way through. This helps the garlic butter mixture seep into the bread during baking.

Using a brush or a spoon, generously apply the prepared garlic butter mixture between the slices of the French bread, ensuring an even distribution of flavors.

Wrap each prepared loaf in aluminum foil, making sure it's tightly sealed to prevent freezer burn.

If not baking immediately, label the wrapped loaves with the date and freeze for later use. They can be stored in the freezer for up to a few weeks.

When ready to bake, preheat your oven to 375°F (190°C).

Place the frozen garlic bread directly on the oven rack or on a baking sheet.

Bake for 15-20 minutes or until the bread is heated through, the edges are crispy, and the garlic butter has melted into the bread.

Remove from the oven, carefully unwrap, and serve the Costco-style frozen garlic bread while it's warm and aromatic.