For chewier texture, substitute rolled oats with steel-cut oats but increase liquid and baking time or pre-soak them., Do not overmix the batter to keep the oatmeal tender instead of dense., Test and adjust chai spice blend to taste before baking., Grease baking dish well or use parchment for easy removal and slicing., If using nuts or dried fruits, fold most into batter and sprinkle some on top to toast them beautifully., A toothpick inserted should come out mostly clean when done; turn pan halfway if oven heats unevenly., Let oatmeal cool slightly before slicing for cleaner pieces., Store leftovers in airtight container in fridge for up to five days., Freeze individual portions for up to two months; thaw overnight or microwave with a splash of milk., To make vegan, replace eggs with flax or chia eggs and use plant-based milk., Add nuts or dried fruits for texture and bursts of sweetness., Serve plain or topped with yogurt.