Create a tunnel on your local:
$ ssh -f -N -L6379:<your redis node endpoint>:6379 <your EC2 node that you use to connect to redis> -i "key.pem"
Connect to redis exposed on your local:
$ redis-cli -h 127.0.0.1 -p 6379
Reference: https://serverfault.com/questions/738923/connect-remotely-to-elasticache-redis