Savory Sweet Potato Puff Casserole

Follow our step-by-step guide on how to make Savory Sweet Potato Puff Casserole.

1. Step 1

   Start by placing the cubed sweet potatoes into a large pot and covering them with water. Bring the pot to a boil, then reduce the heat to medium-low and let it simmer until the sweet potatoes are tender, which should take about 30 minutes. Once they're cooked, drain the water and allow the sweet potatoes to cool.

2. Step 2

   While the sweet potatoes are cooling, preheat your oven to 350°F (175°C) and grease a 9x9 inch baking dish to prepare for the casserole.

3. Step 3

   In the bowl of an electric mixer, combine the cooled sweet potatoes, egg yolks, softened butter, and salt. Beat the mixture on high speed until it becomes creamy and smooth, which should take about 3 to 5 minutes. Once ready, spoon the sweet potato mixture into the prepared baking dish and level the top with a spoon.

4. Step 4

   Next, sprinkle the raisins and chopped walnuts over the sweet potato mixture, gently pressing them into the surface to ensure they stick.

5. Step 5

   In a separate mixing bowl, beat the egg whites until they become foamy, which should take about 1 minute. Gradually add the sugar while continuing to beat the mixture until it becomes glossy and holds soft peaks, which will take an additional 2 to 3 minutes. Spread this meringue over the sweet potato mixture in the baking dish.

6. Step 6

   Finally, bake the casserole in the preheated oven until it is hot and the meringue is lightly browned, which should take about 30 minutes. Once done, remove it from the oven and let it cool slightly before serving.