No-Cook Tangy Blueberry Freezer Jam
Place berries in a bowl and stir in sugar, zest and juice of lemon, lime and orange, cinnamon but not the pectin. Let stand 15 min.
Add the pectin, stir 3 min., until the sugar is completely dissolved and no longer grainy. Pour into washed and dried plastic or glass containers with tight-sealing lids (leaving 1/2-in./1-cm head space for expansion during freezing).
Let jam stand at room temperature for 24 hr., uncovered, then seal and refrigerate up to 3 weeks or freeze up to 6 months.