Gluten Free Overnight Baked French Toast Casserole

Total time9 hr 15 min

Prep time20 min

Cook time55 min

Gluten Free Overnight Baked French Toast Casserole

This make-ahead casserole soaks up a rich, custardy blend of eggs, whole milk, and heavy cream overnight, so every bite turns silky and tender once it bakes. Warm notes of cinnamon, nutmeg, and vanilla run through the custard, while a buttery, cinnamon-spiced crumble bakes into a deep golden, crackly topping. Sliding it into the oven the next morning means almost zero effort at brunch — just a long bake until the edges pull away and the center sets. A finishing drizzle of maple syrup and a dusting of powdered sugar make it feel like a proper occasion, whether that's a lazy weekend or a holiday morning with a crowd. It's a genuinely satisfying, crowd-pleasing option to add to your gluten free brunch rotation.

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Ingredients

8 servings

For the casserole

1 loaf (about 1 lb) brioche bread, cut into 1-inch cubes
6 large eggs
Vital Farms Pasture Raised Large Brown Eggs Egglands Best Organic Large Brown Eggs - 12 Count Eggland's Best Classic Large White Eggs, 12 count Egglands Best Cage Free Large Brown Eggs - 12 Count Vital Farms Pasture-Raised Organic Large Eggs
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2 cups whole milk
½ cup heavy cream
⅓ cup granulated sugar
1 tbsp vanilla extract
1 ½ tsp ground cinnamon
¼ tsp ground nutmeg
¼ tsp salt

For the streusel

½ cup all-purpose flour
Chef's tip
Choose a gluten-free baking blend labeled 1:1 or cup-for-cup and use the same amount. Almond and coconut flour won't work the same way.
½ cup packed light brown sugar
½ tsp ground cinnamon
¼ tsp salt
4 tbsp unsalted butter, cold and cut into small pieces

For serving

maple syrup, for serving (optional)
powdered sugar, for serving (optional)

Instructions

1
Grease a 9x13-inch baking dish with butter or nonstick spray. Arrange the brioche cubes in an even layer in the dish.
2
In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, granulated sugar, vanilla extract, 1 1/2 tsp ground cinnamon, nutmeg, and salt until smooth and fully combined.

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