01 -
In a small saucepan over medium heat, melt the unsalted butter, brown sugar, and corn syrup together. Stir occasionally until the mixture is bubbly and the sugar is fully dissolved, about 3–4 minutes. Pour the hot caramel evenly into the base of a 23 x 33 centimetre baking dish, ensuring a smooth layer.
02 -
Slice the French bread into 2.5 centimetre slices. Arrange the slices in a single layer over the caramel in the baking dish, overlapping slightly if necessary for a snug fit.
03 -
In a medium mixing bowl, vigorously whisk together the eggs, whole milk, vanilla extract, salt, and cinnamon until well combined and slightly frothy. Evenly pour the custard mixture over the arranged bread slices, ensuring full coverage. Gently press the bread to help it absorb the custard.
04 -
Cover the baking dish tightly with plastic wrap and refrigerate for at least 4 hours, preferably overnight, to allow the bread to thoroughly absorb the custard.
05 -
Preheat the oven to 175°C. Remove the casserole from the refrigerator and let it stand at room temperature for 15 minutes to prevent uneven baking. Bake uncovered for 35–40 minutes, until the top is golden brown and the custard is set. The edges should be crisp and the centre should have a custardy consistency.
06 -
Allow the casserole to cool slightly before portioning. Invert each slice so the caramelized side is on top. Serve warm, optionally garnished with fresh berries or a light dusting of powdered sugar.