Melt the butter in one pan and gently fry the shallot and garlic, turning occasionally, until softened but not burnt. Set aside and keep warm.

Meanwhile, in a separate pan, fry the bacon.

When the bacon is almost ready, briefly fry the tomato slices in the first pan. The idea is to just “touch” them for a few seconds and then turn them over and repeat on t’other side.

Place one bacon rasher on a slice of bread, then the tomato slices and garlic.

Then add another bacon rasher and the shallot.

Next add the third rasher of bacon and the (optional) sliced pickled cucumber. Then top it all with the second slice of bread.