Rinse and Prepare the Cranberries: Begin by rinsing 12 oz fresh cranberries under cold water to remove any impurities. In a medium-sized pot, combine the cleaned cranberries with 1 cup crushed pineapple (with juice) and 1/2 cup water.
Cook the Mixture: Bring the pot to a boil over medium-high heat. Once boiling, reduce the heat to low and let it simmer for approximately 10 minutes. You’ll notice the cranberries starting to pop and break down, releasing their juices.
Add Sugar and Spices: After the cranberries have popped, stir in 2 cups sugar, 1 tbsp lemon juice, 1/2 tsp cinnamon, 1/4 tsp allspice, and 1/4 tsp cloves. Stir the mixture until the sugar has completely dissolved.
Boil Again: Allow the mixture to come back to a boil, and then reduce the heat to maintain a gentle boil. Keep cooking for an additional 10-15 minutes, or until the jam has reached your desired thickness. Use a spoon to test the consistency; it should create a thick coating on the back of the spoon.
Cool and Jar: Once the jam has thickened, remove it from heat and let it cool slightly in the pot. Carefully ladle the warm jam into clean, sterilized jars, leaving a little space at the top for expansion.
Seal and Store: Seal the jars tightly and allow them to cool completely at room temperature. Once cooled, refrigerate the jam. It can be stored for up to a month!