Using 12/3 wire to run a different outlets in a kitchen
You have a multi wire branch circuit. You are correct that the reds go to 1 set of outlets with the white and ground from the point you brought the black, white &amp; ground. The first outlet in each string should be a GFCI for all counter top outlets 2014 NEC 210.8.A.6. The handles should be tied with a listed snap on tie or a double pole breaker to be fully code compliant.