Follow these simple steps to make Ultimate Garlic Mashed Potatoes that are sure to impress:

1. Prep the Garlic: Preheat your oven to 400°F (200°C). Cut the top off the head of garlic to expose the cloves. Drizzle with olive oil, wrap in foil, and roast for about 30 minutes or until soft.

2. Prepare the Potatoes: While the garlic is roasting, peel and chop the Yukon Gold potatoes into even chunks. Place them in a large pot of cold, salted water.

3. Boil the Potatoes: Bring the pot to a boil over high heat. Once boiling, reduce to a simmer for about 15-20 minutes, or until the potatoes are tender when pierced with a fork.

4. Drain and Steam: Drain the potatoes in a colander and allow them to steam for a few minutes to remove excess moisture.

5. Mash the Potatoes: In a mixing bowl, combine the still-warm potatoes with the softened roasted garlic cloves (squeeze them out of the skins) and begin mashing with a potato masher until desired consistency is reached.

6. Add Butter and Cream: Pour in the heavy cream and mix in the unsalted butter while mashing, until everything is well combined and creamy.

7. Season: Finally, season with salt and freshly ground black pepper to taste. Adjust according to your preference, ensuring that you have flavor balanced throughout.