01 -
Wash a quart-size glass jar, lid, knife, cutting board, and fermentation weight with hot soapy water. Rinse well.
02 -
Add the chopped jalapenos, serranos, onion, garlic, dill, and mustard seed to the jar.
03 -
Stir the sea salt into the water until fully dissolved. Pour enough brine into the jar to cover the vegetables by at least 1/2 inch.
04 -
Set a fermentation weight on top so everything stays below the brine. Cover with an airlock lid or a regular lid. Ferment at room temperature, ideally 68-75°F, for 7-10 days. If using a regular lid, open it once daily to release pressure.
05 -
When the brine is cloudy, bubbly, and pleasantly sour, strain the vegetables and reserve the brine. Discard the batch if you see fuzzy mold or smell spoilage.
06 -
Blend the fermented vegetables with the dill pickles, pickle brine, white vinegar, and 1/4 cup reserved fermentation brine until smooth. Add more reserved brine or pickle brine to thin.
07 -
For a smoother sauce, strain through a fine mesh sieve. Transfer to clean bottles or jars and refrigerate.