This savory sourdough stuffing casserole is infused with toasted sesame oil, soy sauce, and plenty of scallions. It blends classic comfort food textures with Korean-inspired flavors for a unique holiday side dish. The rich buttery bread absorbs the savory custard, baking up with a soft interior and a crispy, golden-brown parmesan crust. Serve this warm at your next Thanksgiving dinner or festive gathering to surprise and delight your guests.
Total
1 hr 0 min
Ingredients
1 (24-oz.) sourdough bread loaf
1 cup unsalted butter, plus more for greasing baking dish
2 medium-size red onions, halved and cut vertically into ⅓-inch-thick slices (4 ½ cups)
3 cups diagonally sliced scallions (from 8 to 10 large scallions)
3 cups sliced celery (from 4 large celery stalks)
2 Tbsp. granulated sugar
2 tsp. kosher salt
1 cup turkey or vegetable stock
4 large eggs
½ cup whole milk
2 tsp. toasted sesame oil
2 tsp. soy sauce
7 oz. Parmesan cheese, shredded (about 1 ¾ cups), plus more for topping
4 Tbsp. toasted sesame seeds, plus more for topping
1. The night before serving, tear bread into 1- to 2-inch pieces, removing crusts (you will have about 8 to 8 ½ cups). Spread bread pieces on a baking sheet, and let stand, covered with a clean dish towel, at room temperature until dry and slightly crisp (almost like a crouton), at least 8 hours or up to 1 day. (If making the same day, preheat oven to 300°F with racks in top third and lower third positions. Place bread pieces on 2 baking sheets, and bake until dried out, 30 to 50 minutes, stirring pieces and rotating baking sheets between top and bottom racks halfway through bake time.)
Instructions
1Preheat the oven to 350°F and coat a broiler-safe 13- by 9-inch baking dish with softened butter.
2Melt one cup of butter in a large pot over medium-high heat until bubbly, then stir in the red onions, scallions, celery, sugar, and salt.
3Cover the pot and cook for about 5 minutes, stirring occasionally, until the vegetables soften slightly but retain some crunch.
4Whisk the stock, eggs, milk, sesame oil, and soy sauce together in a large mixing bowl until smooth.
5Fold the cooked vegetable mixture, dried bread pieces, Parmesan cheese, and sesame seeds into the wet ingredients until the bread is evenly coated.
6Allow the mixture to rest at room temperature for about 10 minutes, stirring occasionally, so the bread absorbs the liquid.
7Pour the soaked bread mixture into the prepared baking dish and sprinkle the top with extra sesame seeds and Parmesan cheese.
8Cover the baking dish tightly with aluminum foil and set it on a rimmed baking sheet.
9Bake for 50 minutes to 1 hour, or until the center reaches an internal temperature of 165°F.
10Take the baking sheet out of the oven and carefully remove the foil cover.
11Turn the oven to broil and return the uncovered dish to the center rack for 3 to 6 minutes until the top turns golden brown, then serve warm.