1. Place the raspberries, sugar and lemon juice in a microwave-safe bowl (3 liter or 3 quart)*

2. Cover with a vented microwave lid and cook on HIGH (1200W) for 2 minutes.

3. Take out and cool. The jam will thicken as it cools.

* When you make jam, it tends to boil over, unlike making compote. It is better to use a container that is 4 times larger than the amount of the fruit.
* When using plastic wrap as a cover, poke a hole in the center to release the steam.

For how long you should cook with your microwave oven, see Cooking Time vs Wattage Conversion.
For more tips of using Microwave Oven, see Sachiko's Guideline to Microwave Cooking.