1 lb, 2 oz onions
4 T brown sugar
4 T oil
4 T vinegar
1 smoked Liébana Quesuco cheese (or Mahón,Tetilla or San Simón)
Caramelize the onions: Finely slice the peeled onions and place in a pan with the sugar, vinegar, oil and salt. Simmer until any liquid has evaporated and the onions are beginning to caramelize.
Slice the bread into medium-sized slices, trim any rind off the cheese and cut it into wedges. Place one wedge of cheese on each slice of bread then top with a spoonful of caramelized onion. Place the canapés in a hot oven 360° for 5 minutes to quickly melt the cheese.
Serve hot, direct from the oven.