This delicious make ahead french toast casserole is the perfect overnight breakfast casserole recipe. It's such an easy french toast recipe and your family will love it! Try adding peanut butter to the top–it's so good!
In a separate bowl, add your French Toast Casserole ingredients together. Mix well after all the ingredients are added.
Pour the liquid evenly over your torn bread. You shouldn't see much of the liquid sometimes I'll save some and stick it in the fridge so I can add more if I need to before I stick it in the oven.
The goal is for the bread to soak up the egg and milk mixture, but not be dripping in it.
Prepare your cinnamon topping: Mix the brown sugar, flour, and cinnamon in a bowl. Slowly mix in the butter with your fingers, breaking it up and mixing it all together.
Sprinkle the cinnamon topping over the uncooked casserole. Cover the casserole and place in the fridge for a minimum of an hour or as long as overnight.
Preheat oven to 350 degrees. Pull the pan out of the fridge and let warm for 30 minutes on the counter (so you don't break your pan by putting it into a hot oven).
Bake foil-covered casserole for 45 minutes, then remove cover for last 15 minutes. Poke a knife in the middle to make sure it's cooked it shouldn't feel too wet.
10. Serve with syrup, or if you're in our house, peanut butter and syrup!