Are you bottling or kegging? My first batch (and only batch under my belt, so be careful with my advice) was an extract clone of Tommyknocker Maple Nut Brown Ale. 1/3 lb or 150 grams pure maple syrup was added to a 5 gallon boil for the last 5 minutes of boil. 1/2 cup or 120 ml (plus DME) was...