When my father-in-law was around, he used to help my mother-in-law made sandwich in the hospital canteen in Kapit. He used to work in army camp when he was young. British camp where he learnt to make sandwich from them. His sandwich was very nice, I remember as I have the honour to taste it once. It was creamy, and tasty. Can't get enough of it.
How he made his toast sandwich? My mil shared his recipe with me.