I do not cook anything in my microwave except for custard and white sauce. This recipe comes out perfect everytime, my hubby says its better than the ready prepared box one. No burning of milk or sticking to pots.I suppose a vegan can sub cows milk with soy milk. I have a 1200w microwave oven and use only the Tupperware crystalwave Jug to make it in. Adjust the cooking times for different wattage ovens. This yields a fairly thick pouring hot custard. You can adjust to your desired consistency by varying the quantity of powder, or better still, add milk if custard is too thick.