variety of homemade jams in glass jars - Stephaniefrey/Getty Images Fresh fruit is a natural treat, but when it's converted into a spreadable, sweet-tart jam, there's almost nothing it can't do.

homemade berry jam in a mason jar on wood surface - Leka Sergeeva/Shutterstock There's no tastier way to make seasonal fruits last than to turn them into homemade jam. The standard formula for classic ...