garlic , thinly sliced. 3) 5 red onions , thinly sliced. 4) 2 tablespoons cooking oil, for sauteing. 5) 50 g tomatoes, chopped. 6) 5 lime leaves, discard the bones leaves, thinly sliced. 7) 1 stalk lemongrass , crushed, conclude. 8) 2 cm ginger , crushed. 9) 1 bay leaf .