Black and blue has lots of meanings. But from Ms. Shershow’s kitchen, the intense jam by that name is among the most alluring of the 10 flavors she produces.

These preserves are old school: Perfectly ripened fruit is simmered with sugar and fresh lemon juice, then poured into jars, capped and turned upside down, no additives required. My fave? Peach Ginger.

Bonnie's Jams turns your childhood favorite into an epic jam that's basically summer in a jar. Use it with abandon.