The first photo is the sauce. Now that it's out of the fridge, it's much more like water. The dark spot in the middle is a flower motif painted on the pie plate.
It's a much fattier cut than I imagined. The bag calls it a Prime Point Brisket. I've removed some fat at the base of photo. I'm going to do the rest tomorrow because I'm feeling rushed and I don't want to cut myself.
The sauce is abominably salty. Maybe soak it in plain water overnight?
Other advice?
Edited to add that the package states that the sauce/water is included in the weight of th package which was 4.62 lbs (2095.60g). I measured 1247g beef, 553g fat, 338g (11.92 oz) water. (Theres 40g error in math). A lot of waste!