Kettle caramelization...
https://www.homebrewtalk.com/threads/english-ales-whats-your-favorite-recipe.472464/post-9147739
https://www.homebrewtalk.com/threads/english-ales-whats-your-favorite-recipe.472464/post-9147739
One tip I got from a local very high level grand master beer judge for wee heavy said to collect about the first half gallon of runnings and boil that seperately down to about a quart (half) and add that back to the ketlle. To get richness and some extra malliard-y stuff.
I made a 90 percent peated Scottish WHISKY ale. It's intense but very good if you like Laphroaig. I don't think it's a Scotch ale if it uses peat. The confusion I think comes from the name. Scotch refers to the specific style from that country, not Scotch Whisky, which, to my knowledge, use peat mostly in Islay, not everywhere, anyways.