|
2 lb 10 oz (1.200 k) beets, trimmed, leaving 1 inch (3 cm) of stem attached
|
|
1 lb (450 g) onions, peeled, halved and cut in thin slices |
|
3 tablespoons unsalted butter |
|
2 teaspoons balsamic vinegar |
|
¼ cup extra virgin olive oil |
|
½ lb (200 g) parmesan cheese in thin slices with a vegetable peeler |