Both trifle and treacle are traditionally English. Since I'm winding up my mini-excursion to England, I feel it mandatory to mention them. Trifle recipes vary in colors, textures, and flavors. Choices abound which is why I didn't include a specific link to any specific trifle recipe. I liked them all! Treacle is a sugar syrup and recipes that include treacle include puddings, tarts, puddings and more tarts. Again, way too many to list or suggest. I'd love them all. Perhaps you have a trifle or treacle recipe you insist is the best...?
I leave you with a lovely photo of a Treacle Pudding: