This is the ultimate make-ahead brunch dish. Assemble a custardy, cinnamon-scented bake with bread and blueberries the night before, then simply bake it in the morning for a warm, comforting centerpiece that feeds a crowd with minimal effort.
Use slightly stale bread for best absorption. Do not add the streusel until just before baking. The dish can be assembled and frozen for up to 2 months; thaw in fridge before baking.
Find it online: https://harmonymeal.com/brunch-overnight-french-toast-bake/