Lower oven heat to 325.
In a stand mixer, blend the cream cheese with the sugar, flour and salt on high until it is utterly lump-free and completely smooth. Add the vanilla, almond extract and scrape down the bowl and process for another minute.
Add 1 cup of pistachio butter and process until it is very smooth and well-blended. Scrape down the bowl and process again to ensure all is combined.
Add the sour cream and eggs then process until combined.
Pour batter half of the crust and drizzle ¼ cup of pistachio butter over the cheesecake batter. Carefully pour the remaining batter into the prepared pan. Drizzle remaining ¼ cup of pistachio cream over the top of the batter.
Place the cheesecake inside of a 13x9" cake pan. Fill the pan halfway with water. This is the water bath.
Bake for about 50, rather than relying on time here look for visual cues for doneness: if it’s set on the sides and jiggly in the center it’s done.
Remove and cool on the counter for about half an hour.
Transfer to fridge and let cool for 8 hours before serving.