Homemade Raspberry Jam

Last weekend been to Pikemarket(One of famous public market in Seattle) and got some fresh berries. Since, longtime I wanted to make homemade jam and found simple jam recipe on http://www.epicurious.com/

Ingredients:
• 2 cups Sugar

• 2 cups Raspberries

In a ovensafe pan add sugar, warm the sugar at  250°F for 15 minutes. (Warm sugar dissolves better.)
In the stainless steel saucepan, add the raspberries and mash it with a potato masher as they heat. Bring it to boil, stirring constantly.
Add warm sugar, return to a boil, and boil until mixture will form a gel about 5 minutes.
Once the jam cools down pour it to glass container and preserve for a week.