Prepare sliced bread.
Spread kaya jam evenly on one slice of bread.
Cut margarine or vegan butter, left at room temperature, into thick slices.
Place the margarine or vegan butter on top of the kaya jam.
Cover with the other slice of bread.
Add a little oil to a pan and toast both sides over low heat until crispy.
When the bread is golden brown, cut in half and place on a plate.