Batch sparge with 2 gallons hot water after first runnings are collected. I use a bag, so pull the grains from one vessel, let them drip, then put in the sparge water in a 5-gal pot, stir gently, let sit for 10 minutes before pulling out the grains and letting drip again. Then pour the runnings into the boil kettle. I usually get around 85% brewhouse efficiency.

Dark roasted grain (Carafa III here, but could be roasted barley or UK chocolate) not included in mash. Instead, after crushing let them sit in initially warm (120F) water at room temp overnight. Strain the dark liquid into the wort at beginning of the boil. This is to avoid astringency, while adding color and a bit of roasted flavor.

Use two packs of US-05, hydrated.