Utilize Output Cache with User Identity. Found on StackOverflow: http://stackoverflow.com/questions/17187736/output-cache-per-user

BobsBurgersController.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using TwitterPoc.Services;

namespace BobsBurgers.Controllers
{
    public class BobsBurgersController : Controller
    {
        //To use the user cache, the cache needs to be server side sadly
        [OutputCache(VaryByCustom="User", Location = OutputCacheLocation.Server)]
        public ActionResult Index()
        {
            return View();
        }
    }
}

Global.asax.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;

namespace BobsBurgers
{
    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            ...
        }

        public override string GetVaryByCustomString(HttpContext context, string custom)
        {
            if (custom.Equals("User", StringComparison.InvariantCultureIgnoreCase))
            {
                return string.Format("User:{0}", context.User.Identity.Name);
            }

            return base.GetVaryByCustomString(context, custom);
        }
    }
}