Baked French Toast with Croissants and Berries

INGREDIENTS

croissants (, cut in half lengthwise)

2 1/2 cups

milk or half and half

large eggs

1/2 cup

light brown sugar (, lightly packed)

1/2 tsp

ground cinnamon

1/4 tsp

ground nutmeg

1/4 tsp

kosher salt

1 cup

California Giant Berry Farms strawberries (, cut into 3/4- to 1-inch pieces)

1 cup

California Giant Berry Farms blueberries

powdered sugar (, for dusting baked casserole)

1 cup

pure maple syrup

1 tbsp

dark rum, (optional)