Q&A for How to Make French Toast Without Milk

The milk is partly to thin out the mixture, to help it soak into the bread easier. It also slightly contributes to the flavor.

If you wrap French toast properly with foil or plastic wrap, it can last about a month or two in the freezer before losing most of its flavor.

Slightly. It shouldn't be so squishy that the eggs are still raw inside; instead, it should be slightly softened only, since this meal is cooked for a short period of time on a stove.

No, while brown sugar is fine to use if you like it, it has a different flavor from cinnamon and won't add any spiciness. If you don't want to use cinnamon, that's fine but it would just be a sweet toast rather than a spicy and sweet one if you left it out.