water spinach (more or less 200 gr), trim the end of the stems and discard, separate the stems and the leaves • vegetable oil • garlic, thinly sliced • shallots, thinly sliced • red chili pepper, thinly sliced or diagonally sliced • bird eye chili peppers, sliced (optional) • medium tomato, cut into 6 small wedges • salt or to taste • white pepper powder or to taste • mushroom bouillon • water