Slice the green tomatoes into roughly equal sized chunks.
Place the green tomatoes into a quart sized jar, along with the garlic, peppercorns, dill, salt, and whey or starter (if using). Add the water to the jar, leaving an inch or so of head space.
Place the lid on the jar, then shake to dissolve the salt. Remove the lid, then place a fermenting weight on top to weigh down the vegetables. Cover the jar with a towel and secure with a rubber brand.
Place the jar into a quiet corner of your kitchen for 4-7 days. Taste as you go, and when they're to your liking, place a lid on the jar and store in the fridge.
Store fermented green tomatoes in the refrigerator.
Fermented Green Tomatoes Recipe https://www.growforagecookferment.com/fermented-green-tomatoes/