Microwave Peach Jam

I've never made jam before, but this sounds like I could handle this one. From Southern Living Cooking Light.

• Ready In: 15 mins
• Serves: 32

Ingredients

• 4  cups  frozen  unsweetened sliced peaches, thawed
• 1 3⁄4 ounces  powdered fruit pectin (1 package)
• 1  tablespoon sugar
• 1⁄2 teaspoon  ascorbic acid
• 1  tablespoon lemon juice (optional)

Directions

1. Mash peaches with a potato masher.
2. Combine peaches with pectin, sugar, ascorbic acid, and lemon juice, if desired, in a deep 2-quart casserole.
3. Cover and microwave 3 to 4 minutes or until mixture boils 1 minute.
4. Remove from microwave, continue to stir 2 minutes.
5. Pour into freezer containers; cover and freeze.
6. To serve, let jam thaw in refrigerator.
7. Store jam in freezer up to 1 year, or in refrigerator up to 1 month.
8. Yield: 2 half pints (about 14 calories per tablespoon).