Soil for raised boxes

As far as your composting question goes, I have a compost tumbler that I use in the summer time. But in the winter I just dig a wide hole in an area of my garden and then throughout the winter, I toss my veggie/fruit scraps in the hole and cover with some of the soil I dug out - I just do that throughout the winter and then in the spring, that area is like black gold! and that's the soil I'll use then to amend into my raised garden boxes.