Dip one slice of bread into the mixture, coating both sides – about 3-4 seconds each side. Place in the skillet and cook each side for 2-3 minutes. If your pan is big enough for more slices, repeat the step above.
Wipe out the pan and do the next batch, adding ½ tablespoon of butter each time.
Keep cooked slices warm in a 200-degree oven while the rest cook.
Serve topped with a spoonful or two of the blueberry sauce.
Notes
Lightly stale brioche absorbs the custard without falling apart
Keep the stove temperature under medium to prevent the outside from getting done before the middle.
A quick dip in the egg mixture is all that’s needed. If you let it sit too long, it will be too soggy and fall apart.
For leftovers, reheating in the oven or air fryer helps bring back the crisp edges better than microwaving.