Equipment
Ingredients
Produce
- 400 g green tomato, cored and finely diced
- 200 g granny smith apple, peeled, cored, and finely diced
- 100 g yellow onion, finely diced
- 10 g garlic, minced
- 10 g fresh ginger, peeled and grated
Liquids & Seasonings
- 150 ml apple cider vinegar
- 100 g raw cane sugar
- 5 g mustard seeds, whole yellow or brown
- 5 g kosher salt
- 2 g red pepper flakes
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 28 kcal
- Protein
- 0 g
- Carbohydrates
- 7 g
- Fat
- 0 g
- Fiber
- 1 g
- Sugar
- 6 g
- Sodium
- 80 mg
- Saturated Fat
- 0 g
- Monounsaturated Fat
- 0 g
- Polyunsaturated Fat
- 0 g
- Potassium
- 53 mg
- Calcium
- 4 mg
- Iron
- 0.1 mg
- Magnesium
- 3 mg
- Phosphorus
- 8 mg
- Zinc
- 0.0 mg
- Vitamin A
- 7 mcg
- Vitamin C
- 5 mg
- Vitamin E
- 0.1 mg
- Vitamin K
- 2 mcg
- Vitamin B6
- 0.0 mg
- Thiamin
- 0.01 mg
- Riboflavin
- 0.01 mg
- Niacin
- 0.1 mg
- Folate
- 3 mcg
- Water
- 26 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Dice the green tomatoes, apples, and onions into uniform half-centimeter pieces. Consistent knife work ensures the relish cooks evenly and provides a pleasing texture when used as a dip.
Combine the diced produce, garlic, ginger, apple cider vinegar, cane sugar, mustard seeds, salt, and red pepper flakes in a heavy-bottomed saucepan. Stir thoroughly with a wooden spoon to distribute the spices.
Place the saucepan over medium-high heat and bring the mixture to a rolling boil, reaching approximately 100°C/212°F. Stir occasionally to prevent the sugar from scorching on the bottom.
Reduce the heat to low to maintain a gentle simmer around 85°C/185°F. Cook uncovered for 40 to 45 minutes, stirring every 10 minutes. The mixture is ready when the liquid has reduced to a thick, glossy syrup and the tomatoes are translucent.
Remove the saucepan from the heat and allow the relish to cool to room temperature, around 20°C/68°F. Transfer the cooled relish into airtight jars.
Chef's Notes
- Green tomatoes and tart apples are naturally high in pectin. This acts as an organic thickening agent, binding the relish as it cools and eliminating the need for cornstarch or artificial thickeners.
- Always use non-reactive cookware, such as stainless steel, enamel, or glass, when cooking highly acidic ingredients like green tomatoes and vinegar. Aluminum or cast iron can react with the acid, imparting a metallic flavor and discoloring the food.
- While this relish is perfectly safe and delicious to eat immediately after cooling, allowing it to rest in the refrigerator for at least 24 hours will significantly deepen the flavors as the spices and vinegar harmonize.
- For a smoother texture that is ideal for spreading evenly on sandwiches or burgers, you can pulse the cooled relish in a food processor three to four times before transferring it to storage jars.
Storage
Refrigerator: 1 month — Store in an airtight, sterilized glass jar. Flavor significantly improves after resting for 24 hours.
Troubleshooting
Relish remains thin and watery after 45 minutes
Cause: Tomatoes had an exceptionally high water content, or the lid was left on the pot preventing evaporation
Fix: Increase the heat to medium and maintain a vigorous simmer for an additional 10 to 15 minutes until the excess liquid evaporates
Prevention: Always cook relishes and chutneys uncovered to allow moisture to escape
Relish tastes overwhelmingly of vinegar
Cause: The relish has not had time to cure, or the heat was too high, evaporating water instead of vinegar
Fix: Let the relish sit in the refrigerator for 48 hours to mellow. If still too tart, stir in a small amount of simple syrup or additional sugar
Prevention: Ensure a gentle simmer and allow the finished product to rest before serving
Cultural Context
Green tomato relish is a cornerstone of Southern American culinary heritage. It was originally born out of agricultural necessity, created as a resourceful way for farmers to preserve unripe tomatoes before the first killing frost of autumn destroyed the remaining crop. Over generations, it evolved into a highly sought-after condiment in its own right, celebrated for its bright, acidic bite that perfectly cuts through the richness of slow-cooked barbecue, fried foods, and rich grilled meats.
