Homemade jam feels like sunshine in a jar. When I make a batch of this blueberry jam recipe in my kitchen, I want more than good flavor. I want a safe, reliable, research-based method that I can trust ...

Your new DIY obsession starts here. Since this is a template for a low-sugar jam, it won’t keep as long as a standard shop-bought jar. Sugar is a preserving agent, so the less you use, the less time ...