Bake the apple right in the squash, scoop it out and blend it up.
I wanted to start out doing baby-led weaning...it hasn't really worked out for us at this point. But by trying to start with it...I skipped doing a smooth puree. I would offer him a chunk of cooked sweet potato, he didn't seem interested so I would mash it with my fork right at the table. Then he was interested. And I don't see why baby food has to be so processed that it is completely lump free. I mean, how boring is that?
So even when I process the food in my Cuisinart, I leave it a little lumpy. Obviously not big chunks he could choke on...I mean...give me some credit.
I baked this in a 375 degree oven for about a half hour. Next time I will cover the apple with foil so it doesn't dry out on the top.