• Make the wrappers: In a large bowl, mix the flour, turmeric, and salt together. Keep stirring the flour whilst gradually pouring in the hot water and continue to stir until the mixture begins to form small clumps. Knead these clusters to form a large ball of dough. Turn this out onto a clean work surface and knead for 10 more minutes, or until it  becomes smooth and elastic (like Play Doh). If it's too wet and sticky, add a tablespoon of flour; If it's too dry, add another teaspoon of hot water. Place in an airtight jar and set aside for 20 minutes while you prepare the filling.

• Make the filling: Warm a large, dry skillet over high heat and coat the pan with oil. Add all the filling ingredients and sauté for 3 to 5 minutes until the moisture from the vegetables evaporate. You don't want it to be too wet or your dumplings will fall apart. If there's excess liquid, either add flour to absorb the moisture, and/or let the mixture cool in a fine-meshed sieve to drain. Let the mixture cool completely before assembling the dumplings.

• On a clean, lightly floured work surface, roll the wrapper dough into a long, skinny piece about 1-inch in diameter and divide it into 16 equal pieces. Keep these pieces in the jar so they don't dry out while you're assembling the dumplings.

• Assemble the dumplings one at a time: Flatten a piece of dough with the palm of your hand and then roll it out to a ⅛-inch (3mm) thick round, about 4" (10cm) in diameter. Place one spoonful of the filling in the center of the wrapper; taking care not to overfill it, or it will be difficult to close. Fold the wrapper in half—into a semi-circle—and firmly pinch the top point closed, next take the open ends of the "taco" and lift these up to meet in the pinched center so that the dough takes the form of an "X" shape. Pinch in the middle again, allowing the petals of the "X" to stay open. Use your fingertip to lightly moisten one side of each petal and pinch the petals together to form a flower. Encourage the petals to open a little more and fill each one with the various chopped toppings. Continue until you run out of filling, or dough. Leftover dough can be used to make noodles (simply roll and cut them into strips boiling them for 2-4 minutes), and leftover filling and toppings can be used to add to a fried rice.

TO STEAM: Fill a wok or frying pan with about an inch of water – not too high make sure the water doesn't touch the dumplings. Line the steamer basket with the thinly sliced vegetable rounds or leaves. Place the dumpling on each round. Bring the water to a boil, then turn the heat down to medium. Place the steamer basket in and cover and steam for 5 minutes (fresh) or 8 minutes (frozen). Make sure to check the water level after 4 minutes and replenish if necessary.

Note: If you don't have a steamer basket, you can steam your dumplings on a flat plate/dish, raised above the water with a canning jar ring, or something similar.