Relationship Between HttpContext.Request.Cookies And HttpContext.Response.Cookies

I have been experimenting with code that will clear all of the cookies in an HttpContext.Response.Initially, I used this:

DateTime cookieExpires = DateTime.Now.AddDays(-1);
for (int i = 0; i < HttpContext.Request.Cookies.Count; i++)
{
HttpContext.Response.Cookies.Add(
new HttpCookie(HttpContext.Request.Cookies[i].Name, null) { Expires = cookieExpires });
}

this will error with an OutOfMemoryException because the for loop never exits - each time you add a cookie to the Response, it also gets added to the `Request.