1-First Step: Preheat and prep the pan. Set your oven to 500°F. That high heat is what gives the sweet potatoes their golden bottoms and lightly crisp edges. Use a 9×13-inch metal baking pan for the best browning, since metal conducts heat better than glass. If you want a little help with roasted vegetable timing, this dish follows the same general logic used in many oven-baked sides, including some of the savory bakes you might serve with a cozy meal.

2-Second Step: Mix the seasoning base. In a large bowl, stir together 2 tablespoons melted unsalted butter, 2 tablespoons olive oil, 3/4 teaspoon kosher salt, and 1/2 teaspoon freshly ground black pepper. This simple mixture coats the sweet potatoes evenly and gives them flavor in every bite. The combination of butter and oil also helps prevent the pan from drying out during the first roast.

3-Third Step: Coat the sweet potatoes and rosemary. Add the 2 pounds of sweet potato rounds and 1 tablespoon coarsely chopped fresh rosemary leaves to the bowl. Toss everything until the slices are evenly coated. Take a second here to make sure each round gets a little seasoning on both sides. That helps the finished dish taste balanced, not salty in one spot and bland in another.

4-Fourth Step: Arrange for proper browning. Place the rounds cut-side up in a single layer in the baking pan. Leave a little space between them if you can, because crowded potatoes steam instead of brown. Drizzle any remaining butter mixture over the top. This extra coating helps the tops get glossy and flavorful while the bottoms roast.

5-Fifth Step: Roast until the bottoms turn golden. Roast the potatoes for 15 minutes. When you pull the pan out, the bottoms should be light golden-brown. That color tells you the sugars are starting to caramelize, which is a big part of what makes Melting Sweet Potatoes taste so special. If your oven runs cool, you may need a few extra minutes, but avoid overbrowning at this stage.

6-Sixth Step: Flip and roast again. Use a spatula or tongs to flip each round. Return the pan to the oven for another 15 minutes. This second roast helps both sides get a little color, and it starts to soften the center before the broth goes in. You should be able to see the edges turning tender and glossy.

7-Seventh Step: Add broth and garlic for the melting finish. Remove the pan from the oven and pour in 1 cup low-sodium vegetable or chicken broth. Add the 4 smashed garlic cloves, then return the pan to the oven for the final 15 minutes. The broth steams the potatoes from below, which is what gives them that soft, almost melt-in-your-mouth texture. For garlic notes and more savory depth, you can read a bit more about rosemary and its flavor-friendly benefits before you cook.

8-Final Step: Check tenderness and serve. After the last roast, the sweet potatoes should be very tender and most of the broth should be absorbed. If you poke a round with a fork, it should slide in easily. Transfer the potatoes to a serving platter, spoon any pan juices over the top, and finish with a few fresh herbs if you like. Parsley or chives work especially well here.