French toast is delicious, but standing at the stove and making a couple slices at a time can get quite tedious. That’s why we love a good Blueberry French Toast Casserole! You can make it the night before and pop it in the oven in the morning – making it the perfect brunch dish! Member’s Mark™ Ground Cinnamon gives this dish a touch of warmth, and it combines wonderfully with the blueberry flavor!
How to Make the Icing
While this recipe tastes wonderful on its own (or with blueberry syrup), a light drizzle of icing makes a big impact! Here’s how:
Classic Vanilla Icing (most popular)
Ingredients:
- 1 cup powdered sugar
- 1–2 tablespoons milk (or cream for richer flavor)
- ½ teaspoon vanilla extract
- Pinch of salt (optional, but helps balance sweetness)
Instructions:
- Whisk powdered sugar and 1 tablespoon milk until smooth.
- Add more milk a little at a time until it’s pourable (not too runny).
- Stir in vanilla and salt.
- Drizzle over warm casserole so it melts slightly into the top.
Cream Cheese Icing (richer, more indulgent)
Ingredients:
- 4 oz cream cheese, softened
- 1 cup powdered sugar
- 1–3 tablespoons milk
- ½ teaspoon vanilla extract
Instructions:
- Beat cream cheese until smooth.
- Mix in powdered sugar.
- Add milk gradually until it reaches a drizzle consistency.
- Stir in vanilla and drizzle or spread over the casserole.
Maple Icing (great with breakfast flavors)
Ingredients:
- 1 cup powdered sugar
- 2–3 tablespoons maple syrup
- 1 tablespoon milk (optional, to thin)
Instructions:
Whisk everything together until smooth and pourable.
Pro tips:
- Add a dash of cinnamon or nutmeg to match the casserole flavors
- For a bakery-style finish, drizzle in zigzags instead of pouring
- If your casserole is very sweet already, keep the icing thinner and lighter

Blueberry French Toast Casserole
French toast is delicious, but standing at the stove and making a couple slices at a time can get quite tedious. That's why we love a good Blueberry French Toast Casserole! You can make it the night before and pop it in the oven in the morning - making it the perfect brunch dish!
Ingredients
- 1 loaf (about 1 lb) Sourdough or French bread cut into cubes
- 1 cup Blueberries
- 8 Eggs
- 1¾ cups 2% milk
- ¾ cup Heavy cream
- 6 tbsp Light brown sugar
- 1 tbsp Pure vanilla extract
- ½ tbsp + 1 tsp Member's Mark™ Ground Cinnamon
- ½ tsp Nutmeg
- ¼ tsp Kosher salt
- ¼ cup Rolled oats
- ¼ cup Crushed pecans
- ¼ cup Turbinado sugar
- 2 tbsp All-purpose flour
- 6 tbsp Salter butter cold and cut into small pieces
Instructions
- Grease a 9 x 13″ baking dish. Add half of the torn bread and ½ cup of the blueberries, then more bread.
- In a large bowl, whisk the eggs until frothy. Whisk in the milk, cream, sugar, vanilla extract, ½ tablespoon Member's Mark™ Ground Cinnamon, nutmeg and salt.
- Pour the custard over the bread pieces; make sure the tops of the bread are all coated. Top with the remaining ½ cup blueberries. Cover with foil and refrigerate overnight.
- In the morning, preheat the oven to 375℉. Remove the casserole from the fridge and bring to room temperature.
- In a medium bowl, combine the rolled oats, pecans, turbinado sugar, flour, and 1 teaspoon cinnamon. Cut the butter into the other ingredients using a pastry cutter or fork until evenly combined and a crumbly streusel topping forms.
- Sprinkle the streusel topping over the French toast. Bake 40 to 45 minutes until browned and set. Rest 10 minutes before serving.
- Top with a light drizzle of icing and serve!