Break cauliflower into very small florets.
Peel and slice the carrot into 2” long sticks about ¼” thick.
Cut off the stem of the jalapeno and slice into thin rounds.
Peel the garlic and crush partially with the side of a knife.
In a sterilized quart jar, layer the cauliflower florets, carrots, and sliced jalapenos. Pack in fairly tightly.
Once the jar is full, add in the mustard and caraway seed.
In a medium saucepan, heat the vinegar, sugar, salt, and water. Stir the mixture until everything is dissolved, then bring to a simmer.
Pour hot mixture over the vegetables until completely covered. Leave ½” of space at the top of the jar. Place the lid on and seal tightly.
Allow to pickle in the refrigerator for at least 5 days. Will last refrigerated for up to 2 months