01 -
Spread the cubed muffins on a baking tray and let them sit out overnight until they're dry. If you're short on time, lightly toast them under the broiler instead.
02 -
Spray a large baking dish (12×8-inch or deep 13×9-inch) with nonstick spray. Add a layer of half the muffin pieces, followed by half the ham and cheese. Repeat these layers, ending with a layer of cheese on top.
03 -
In a bowl, whisk together the eggs, cream, salt, pepper, mustard, garlic, nutmeg, onion, and thyme until smooth. Slowly pour this over the layers in the dish.
04 -
Gently press the bread cubes into the egg mixture using a spoon to help them soak up the liquid evenly. Wrap the dish in plastic and keep it in the fridge overnight.
05 -
Set the oven to 350°F (175°C). Remove the dish from the fridge 15 minutes before baking, take off the plastic wrap, and sprinkle paprika on top. Dot the surface with the butter pieces.
06 -
Cover the dish with foil and bake for 30 minutes. Then, take off the foil and bake for another 15-20 minutes until golden and set. A knife inserted in the middle should come out clean.
07 -
While the casserole finishes cooking, prepare your hollandaise sauce using the packet instructions or your homemade recipe.
08 -
Let the casserole cool for 5 minutes. Add hollandaise sauce and sprinkle with fresh parsley or chives before serving. Offer extra sauce on the side for those who want more.