Heat olive oil in a skillet over medium heat. Add the sliced onion and cook, stirring occasionally, until softened and golden brown (about 15 minutes). Sprinkle with sugar, and cook for an ...

Toss together leeks, potatoes, salt, 3 tablespoons reserved bacon drippings, and 1/4 teaspoon pepper on a large rimmed baking ...

To make the topping, dry fry the bacon lardons in a frying pan ... or until the base is crisp and the cheese is bubbling. Slide the tarts onto a wooden board and use a pizza cutter to cut them ...

Sprinkle half the cheese equally among the tart cases, followed by half of the chopped bacon. Divide all of the diced courgette among the pastry cases, then cover with the remaining cheese and bacon.