This recipe came from the cookbook of my Grandma Alice (1894-1967). Sadly I never met her but my parents have always kept her memory alive and Dad has often reminisced about his mum making this relish. My Mum has made it almost annually with her fresh home grown tomatoes - its SO good!! We all love it - with meat on sandwiches, on mashed potatoes, on its own with bread and butter and even on toast for breakfast, especially with a fried egg - yum. The recipe makes 7 x 600ml bottles.
This recipe came from the cookbook of my Grandma Alice (1894-1967). Sadly I never met her but my parents have always kept her memory alive and Dad has often reminisced about his mum making this relish. My Mum has made it almost annually with her fresh home grown tomatoes - its SO good!! We all love it - with meat on sandwiches, on mashed potatoes, on its own with bread and butter and even on toast for breakfast, especially with a fried egg - yum. The recipe makes 7 x 600ml bottles.
Swapping red tomatoes for entirely green ones introduces significantly more pectin and less natural sugar, yielding a firmer, tangier preserve that behaves differently during the reduction stage. Understanding textural physics dictates every phase of this preparation. Salting chopped tomatoes and onions overnight draws out excess intracellular water through osmosis, preventing a watery final condiment that slides off a sandwich. Discarding that initial brine eliminates surface moisture that would otherwise dilute the vinegar concentration required for preservation.
Cornflour acts as the primary stabilizing agent, but starches gelatinize incorrectly if exposed directly to boiling liquid. Whisking the dry mustard, curry powder, and cornflour into cold vinegar first creates a lump-free slurry before it encounters the simmering pot. Simmering the mixture between 30 and 60 minutes drives off residual water while concentrating the sugars. Stir constantly during this phase because high sugar content scorches easily at the bottom of the vessel.