Microwave the butter (or margarine) for a minute to melt. Mix in all ☆ ingredients.
Divide each slice of bread into fourths and line up in a flat container. Pour in the mixed ingredients from Step 1. Flip the bread over midway, and leave for several minutes to soak.
Preheat the oven to 200℃. Line a baking tray with a sheet of parchment paper, and arrange the bread on it.
Bake for 12 minutes at 200℃ to finish. Sprinkle with powdered sugar if you wish.
Story Behind this Recipe
A recipe for oven-baked French toast was on display in a bakeware shop near my house, but the recipe used such a tiny amount of liquid. So I modified the recipe in such a way that I thought it would suit my family's tastes better. There's usually no rings free on the hob in the morning as everyone's making their packed lunches, so recipes like this that don't require a frying pan are so handy. Pictured is the recipe made with Danish bread.
With this amount of egg mixture you can soak 4 slices of an 8 slice loaf of bread, but please shorten the baking time slightly. The egg mixture will probably not be enough to do 4 slices of an 6 loaf bread, so add one more egg to ensure the bread gets saturated. Note that this will result in a stronger egg taste and the overall result will be less sweet.