A few years ago there was a thread on Ask Metafilter about tofu in which Greg Nog posted a recipe for baked tofu. Every time I want to make baked tofu I dig up that thread.

Greg Nog’s Tofu, More Or Less
(half recipe)

1 lb package of extra-firm tofu, frozen and thawed
1-2 cloves garlic, put through a garlic press
1 1/2 tablespoons of peanut butter
2 1/2 tablespoons of vegetable oil
2 1/2 tablespoons of soy sauce
cayenne or whatever you like for heat
pinch of dry ginger
black pepper

First, get your oven going to 350. Now squeeze as much liquid out of the thawed block of tofu as you can, then cut it into strips and squeeze each strip carefully. You want to get it as dry as you can so it’ll soak up lots of the marinade that you’re about to make. If you cut the block into seven or eight slabs and cut each slab in half lengthwise, it’ll fit well in a 9×13″ pan.

Mix up your marinade. Add the oils first, then emulsify with the soy sauce. This amount will just cover your tofu, so you might want to be pretty liberal in your measurements. I’m fond of Mama Lil’s hot peppers in oil and am always wondering what to do with the extra flavored oil; about half a tablespoon of it in the vegetable oil mix is good. A little sesame oil is good too. For the bulk of the oil, I prefer peanut oil. When you’ve mixed it all up, taste it for balance.

Cover your tofu with the marinade and bake at 350 for an hour, turning the tofu over half-way through.