Cranberry Orange Brioche French Toast Casserole in a Crockpot

This slow-cooker French toast casserole brings together the bright flavors of cranberry and orange in one effortless dish. Cube challah, toss with cranberries and a rich custard, then let the Crockpot do the work.

Three hours later, you pull the lid off to reveal a puffed, jammy, golden bake that fills the kitchen with holiday aromas. A Grand Marnier glaze and sugared cranberries make it feel extra special, yet the prep takes just minutes. Perfect for Christmas morning or any festive brunch—no oven space required.

Start the holiday with a breakfast that feels like a celebration but comes together with almost no effort. This cranberry orange brioche French toast casserole cooks entirely in your slow cooker, leaving your oven free for other dishes.

Cubed challah soaks in a silky custard of eggs, cream, and brown sugar, while fresh cranberries burst into tart-sweet ribbons as they cook. The finishing touches—a glossy Grand Marnier glaze, sugared cranberries, and toasted almonds—add texture and a touch of elegance. Set it in the morning, and by late morning you have a warm, festive dish that serves a crowd.

Ingredients

Why this recipe works

The slow cooker creates a gentle, even heat that sets the custard without scrambling the eggs. This low-and-slow method allows the bread to absorb the custard fully, resulting in a tender, creamy texture throughout—similar to a baked French toast but with more moisture retention.

The enclosed environment also helps the cranberries pop and release their juices, forming natural jammy ribbons that weave through the casserole.

Challah and brioche are ideal because their rich, eggy crumb holds up to the custard without turning mushy. The high fat content in the bread and cream ensures a soft, almost pudding-like interior with a slightly crisp edge where it touches the ceramic. The slow cooker also traps steam, so the top stays moist and the bottom doesn't dry out, giving you a consistent, luscious bite in every spoonful.

Notes and substitutions

Use a good-quality challah or brioche; day-old bread works best because it absorbs the custard evenly without disintegrating. If your bread is very fresh, let the assembled casserole sit for 10 to 15 minutes before cooking so the custard can soak in.

Fresh cranberries are tart and hold their shape, but frozen cranberries work well too—do not thaw them before adding, as they will release moisture during cooking.

Grand Marnier adds a lovely orange liqueur flavor to the glaze, but you can substitute orange juice and a teaspoon of orange extract for a non-alcoholic version. Toasted sliced almonds provide a nutty crunch; if you have a nut allergy, omit them or use toasted sunflower seeds. The slow cooker size matters: a 6-quart oval insert works best for even cooking. If yours is smaller, reduce the recipe by a third.

• challah bread: brioche or other rich bread
• Grand Marnier: orange juice plus 1 tsp orange extract
• heavy cream: half-and-half for a lighter custard
• fresh cranberries: frozen cranberries (do not thaw)

Equipment

• 6-quart slow cooker
• Large mixing bowl
• Whisk
• Measuring cups and spoons
• Rubber spatula
• Small bowl for glaze