Flavor Flours is all about alternative flours / gluten free baking, though I’ll admit that I ended up preferring substituting a homemade GF mix into her (and other) regular recipes.
I made this Afternoon Cake from Julia Turshen when half the family was GF, and it was wonderfully moist and delicious - even with substitutions. (However, as a nut flour cake, the crumb and texture are different than the usual citrus olive oil cake canon.)
She also has a no-flour version (Torta di Galicia / Spanish orange almond cake) here.