Active Time
20 Mins
Total Time
2 Hours 35 Mins
Serves 12 (serving size: about 1/2 cup)

Our delicious casserole has 5 fewer teaspoons (20g) of added sugar per serving than traditional versions.

How to Make It

Step 1

Preheat oven to 350°F. Wrap potatoes individually in foil. Arrange on a baking sheet. Roast at 350°F until very tender, 60 to 75 minutes. Set aside until cool enough to handle, about 15 minutes. Peel potatoes; discard skins. Place potatoes in a large bowl; mash until smooth. Cool completely, about 20 minutes. Stir in milk, butter, vanilla, salt, pepper, and egg yolks. Spread mixture evenly in a 2-quart glass or ceramic baking dish coated with cooking spray.

Step 2

Whisk egg whites in a medium bowl until frothy. Stir in walnuts, oats, brown sugar, and cardamom. Sprinkle evenly over sweet potato mixture. Bake at 350°F, uncovered, until top is toasted and edges are bubbling, 40 to 50 minutes.

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