This Pumpkin French Toast Bake takes everything you love about pumpkin pie and turns it into an easy, make ahead breakfast that feeds a crowd. Thick cubes of brioche soak overnight in a spiced pumpkin custard, then bake under a buttery pecan streusel until deep golden brown. It is the perfect cozy fall morning treat for holiday brunches and lazy weekends.
Lightly grease a 9x13 inch baking dish with butter or non stick spray. Cut brioche into 1 inch cubes and spread evenly in the dish.
In a large bowl, whisk eggs until frothy. Add milk, pumpkin puree, brown sugar, and vanilla, whisking until smooth. Stir in pumpkin pie spice, cinnamon, and salt.
Pour custard over bread cubes, pressing down gently so bread absorbs liquid. Cover tightly and refrigerate at least 1 hour or overnight.
Combine flour, brown sugar, pecans, and cinnamon. Cut in cold butter until mixture resembles coarse sand with pea sized clumps. Refrigerate until ready to bake.
Preheat oven to 350 degrees Fahrenheit. Let dish sit at room temperature for 15 minutes, then sprinkle streusel evenly over the top.
Bake for 40 to 45 minutes until deep golden brown and center is set. Tent with foil if streusel browns too quickly. Rest 5 to 10 minutes before slicing.
Slice into squares while warm. Drizzle with maple syrup and add whipped cream or powdered sugar if desired. Serve immediately.
Notes
Use day old or slightly stale bread so it absorbs the custard instead of turning mushy.
Do not skip the chilling step, since it lets the bread soak up flavor evenly.
Whisk the custard thoroughly so there are no streaks of pumpkin left.
Keep the streusel butter cold for the best crumbly texture.
Check the center with a knife around the 40 minute mark to avoid overbaking.
Swap the pecan streusel for a simple crumb topping made with oats and brown sugar.
Fold in half a cup of chocolate chips or dried cranberries before baking for a variation.
Use challah or sourdough bread instead of brioche for a slightly different texture.
Make it dairy free by swapping the whole milk for oat milk or almond milk.
Store leftovers covered in the refrigerator for up to 4 days. Reheat individual squares in the microwave for 30 to 45 seconds.
Freeze baked and cooled squares in an airtight container for up to 2 months. Thaw overnight in the refrigerator before reheating.