Cranberry Orange Brioche French Toast Casserole in a Crockpot Step-by-step instructions

Before you start

Before cooking, cube the challah into 1-inch pieces and let them sit out to dry slightly if time allows. Grate the orange zest and squeeze the orange juice. In a large bowl, whisk the eggs until frothy, then add the heavy cream, cinnamon, and brown sugar, whisking until the sugar dissolves.

Have your slow cooker insert ready and lightly greased. Measure the cranberries and set them aside. For the glaze, measure the Grand Marnier, confectioners' sugar, and orange juice into a small bowl, but do not mix yet. Prepare the sugared cranberries and toast the almonds if using.

Instructions

Prep and Assemble

1. 1Prep the Bread and Custard
   Place the cubed challah in the slow cooker insert. Sprinkle the fresh cranberries, orange zest, and orange juice over the bread. In a large bowl, whisk together the eggs, heavy cream, cinnamon, and brown sugar until smooth. Pour the custard evenly over the bread mixture, pressing gently with a spatula to ensure all bread is coated.
   Look for The bread should be well soaked, with custard visible in the gaps.
   Tip Use day-old bread for better absorption; if using fresh, let it sit for 10 minutes after pouring.
2. 2Layer the Mixture
   Gently toss the bread and cranberry mixture in the slow cooker to distribute the cranberries and custard evenly. Smooth the top with a spatula. Cover the slow cooker with the lid.
   Look for The top should look even and moist.
   Tip Avoid over-stirring to keep the bread pieces intact.

At this stage, the bread cubes should be evenly coated with the custard, and the cranberries should be distributed throughout. The mixture will look wet and saucy, but that is expected. The top should be level, and you should see custard pooling slightly in the gaps.

The orange zest should be visibly speckled across the surface. This is the time to press down gently with a spatula to ensure all bread is submerged. The slow cooker should be covered and ready to go.

Slow Cook and Set

3. 3Slow-Cook the Casserole
   Cook on LOW for 3 hours, without opening the lid, until the custard is set and the cranberries have popped into jammy ribbons. The casserole should be puffed around the edges and slightly golden.
   Look for The edges will look puffed and the center will be set, not wet.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip Resist the urge to peek—every opening releases heat and can extend cooking time.
4. 4Check for Doneness
   After 3 hours, insert a knife into the center of the casserole. It should come out clean, and the internal temperature should read 160°F (71°C). If not done, continue cooking in 15-minute increments.
   Look for A knife inserted in the center comes out clean.
   Safe temperature 160°F (71°C) internal temperature (egg dishes)
   Tip If the top is browning too quickly, tent with foil.

After 2 hours, the kitchen will smell of orange and cinnamon. The edges of the casserole will start to puff and turn golden, while the center will still look moist. The cranberries will begin to pop, releasing their deep red juice. By 3 hours, the custard should be set, and the top will be a mix of golden brown and ruby red. Insert a knife into the center—it should come out clean, and the temperature should read 160°F (71°C).

Glaze and Serve

5. 5Make the Glaze
   In a small bowl, whisk together the Grand Marnier, confectioners' sugar, and orange juice until smooth. The glaze should be pourable but slightly thick.
   Look for The glaze should coat the back of a spoon.
   Tip Add more orange juice a teaspoon at a time if too thick.
6. 6Serve and Garnish
   Spoon warm servings of the casserole onto plates. Drizzle each serving with the orange glaze, then top with sugared cranberries and toasted sliced almonds. Serve immediately.
   Look for The glaze should cascade over the warm casserole.
   Tip For extra crunch, toast the almonds in a dry skillet before serving.

The casserole should be puffed and golden, with cranberry ribbons running through it. The glaze should be smooth and pourable, with a sweet orange aroma. When you spoon a serving, the casserole should hold its shape but be tender and moist. The glaze should drizzle over the top, and the sugared cranberries and almonds should add a festive crunch. Serve warm, straight from the slow cooker.

Common mistakes

A common mistake is opening the slow cooker lid during cooking, which releases heat and can extend the cooking time significantly. Another is using bread that is too fresh, which can turn mushy; day-old challah or brioche is ideal. Overmixing the bread and custard can break the bread into pieces, so fold gently.

Also, avoid overfilling the slow cooker—leave about an inch of space at the top, as the casserole will puff slightly. Finally, do not skip the temperature check; visual cues alone can be misleading, and proper doneness ensures food safety.

How to tell it’s done

The casserole is done when the custard is fully set and no longer liquid in the center. Insert a knife into the middle—it should come out clean. The internal temperature should read 160°F (71°C) to ensure the eggs are cooked through.

The cranberries will have burst and released their juices, creating ruby-red ribbons throughout. The edges will be slightly puffed and golden, while the center remains moist and tender. If the top browns too quickly, cover with foil and continue cooking until set.

• Egg dishes: 160°F (71°C) in the thickest part