Ingredients: 1 sheet frozen puff pastry, thawed 4 tablespoons butter 7 slices thick-cut bacon, chopped 5 potatoes (or 4 large), peeled and sliced thin 1 onion, peeled and sliced thin 1 tablespoon fresh dill 1/2 cup heavy cream or half-and-half Salt and pepper to taste Chive or scallion …