4 balsamic onion mushroom tarts Recipes

olive oil, butter, red onion, thinly sliced, sugar, balsamic vinegar, cremini mushrooms, thinly sliced, refrigerated pie dough , pre-rolled variety, egg, sour cream, reduced fat is fine, salt, fresh ground pepper, dried parsley, blue cheese , a nice squidgy variety

red onions , large, olive oil (60 ml), balsamic vinegar (30 ml), sugar, dark brown (15 ml, treacle or muscovado sugar), white mushrooms, small, cleaned, whole (200 g, and halved if large), flaked sea salt, walnuts (50 g), blue cheese (100 g, your choice , i used danish), puff pastry (250 g, defrosted, cold), egg, beaten

olive oil, butter, vidalia onions , sliced into eighths, garlic cloves, minced, porcini mushrooms, thinly sliced, fresh thyme leave, sherry wine, freshly grated parmigiano-reggiano cheese, plus extra, parmigiano-reggiano cheese, for sprinkling, lemon (will use both juice and zest), ground nutmeg, balsamic vinegar, arugula, salt & freshly ground black pepper, fresh flat-leaf parsley, finely minced, puff pastry sheets, egg, lightly beaten