Summer is a wonderful time for making jams and preserves, and this Mock Raspberry Jam—also called Green Tomato Jam—is a delightful way to use an abundance of green tomatoes from the garden. The finished jam tastes fruity and sweet, and most people are surprised to learn it was made from green tomatoes rather than berries. It’s an easy, unexpected way to turn surplus tomatoes into a spread that’s perfect on toast, biscuits, or stirred into yogurt.
If you’ve never tried making mock raspberry jam, this simple recipe is a great place to start. The texture and flavor mimic berry jam because the recipe relies on sweetened gelatin and sugar to develop the fruity profile, while the green tomatoes provide body and natural pectin. It’s a clever way to use tomatoes that are just beginning to ripen and might otherwise go unused.
For best results, choose large, firm green tomatoes that are starting to show the faintest hint of ripening. Avoid fully ripe tomatoes, as they can become grainy in texture and introduce a stronger tomato flavor that overwhelms the delicate, jam-like taste this recipe aims for. The seeds do not need to be removed; they contribute to the jam’s appearance and help create the impression of berry seeds.
Mock Raspberry Jam (Green Tomato Jam)
Ingredients
– 2 1/2 cups shredded or finely chopped green tomatoes (about 3 medium tomatoes)
– 1 1/2 cups granulated sugar (you can reduce to 1 cup if you prefer less sweetness)
– 1 package (3 ounces) raspberry gelatin (or blackberry, mixed berry, or strawberry gelatin to vary the flavor)
Directions
1. Wash and trim the green tomatoes, then shred or finely chop them until you have approximately 2 1/2 cups.
2. In a large saucepan, combine the shredded tomatoes and the sugar. Bring the mixture to a boil over medium heat, stirring occasionally to dissolve the sugar.
3. Once boiling, reduce the heat to very low and let the mixture simmer, uncovered, for about 20 minutes. Stir periodically to prevent sticking and to help the tomatoes soften and release their juice.
4. Remove the pan from the heat and stir in the packet of gelatin until it is fully dissolved and evenly distributed. Skim off any foam from the surface with a spoon.
5. Carefully ladle the jam into clean jars or freezer-safe containers, leaving about 1/2 inch of headspace.
6. If you plan to freeze the jam, allow it to cool before placing lids on the containers. Otherwise, cover and refrigerate. This recipe yields about 3 cups of jam.
Flavor Variations and Tips
This recipe is versatile and adapts well to different gelatin flavors. Raspberry and blackberry gelatins create the most authentic “berry” taste, while mixed berry or strawberry will produce slightly different but still enjoyable results. If you prefer less sugar, reduce the added sugar to 1 cup because the gelatin is already quite sweet.
We haven’t tested this recipe with artificial sweeteners like Splenda, so results may vary; feel free to experiment and share your experience. The finished jam will keep in the refrigerator for about one week, or in the freezer for up to six months when stored in appropriate freezer containers.
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If you enjoy creative, budget-friendly recipes, this Mock Raspberry Jam is a smart way to stretch garden produce into something everyone will love. It’s approachable for beginners, uses common pantry ingredients, and yields a tasty spread that tastes like berry jam with a surprising twist.