So, I'm brewing an all-grain batch of the Rogue Chocolate Stout Clone based on this recipe (https://www.homebrewersassociation.org/homebrew-recipe/rogue-chocolate-stout-clone/). I divided the recipe by 5 to get proper amounts for a smaller, 1 Gal batch, as this is my second brew, and I figure there's less to throw out if it's bad.
My OG reading was 1.022, which way undershot the expected OG of 1.069. For the first three days, it was going like gangbusters, lots of airlock activity and happy yeast, at a nice warm temperature of around 21 C. Today, it just stopped, even though the recipe suggests leaving it in primary for a week. I took a quick read, and the gravity dropped to 1.011 with a temp of 20 C.
Not sure if I need to pitch more yeast, or if that's all I'm going to get, given the smaller quantity of wort and fermentable sugars to work with. It still needs to go through secondary with chocolate extract added. A quick tasting points to the fact that it's a bit watery, and the color is much lighter than I'd expect, but otherwise, it fits for what you'd expect an uncarbonated stout to taste like (malty, roasty).
What am I doing wrong? Should I go ahead and transfer to secondary now, add more yeast, or do something else?