Thanks ^^. The way I envisioned it, baking the biscuits would be a bittersweet ritual; it'd evoke memories of simple, innocent happiness, love and loneliness. Severus does it partially in rememberance of Lily and partially to remind himself that, although the years have damaged and changed him, there is something of the boy he used to be still within him. Harry's reciprocation showed him a facet of Lily in her son and, as Severus loved her dearly, I think one could say that something has definately changed within their dynamic.

I'm glad you like the reconciliation between AD and GG; the appeal of their story is rather dependant upon the audience's mindset with regards to gay literature but, if you can get past that hurdle, their love is probably the most beautiful and tragic of the HP pairings- Lily and Severus included.