Peel and slice carrots diagonally, into large pieces.
Slice onion into ¼ inch thick pieces.
Cut the stem off the jalapeño and slice thin. Set aside.
In a large stock pot, heat the oil over medium heat.
Add the carrots.
Cook for 5 minutes, stirring constantly.
Add the jalapenos, onion, and garlic. Stir constantly for 2-3 minutes, or until the onion is soft.
Add the vinegar, water, bay leaves, oregano, salt, and peppercorns.
Lower heat to medium-low. Cook for 10 minutes. Uncovered.
Allow to cool completely and store vegetables and cooking liquid in clean, sterile glass containers with a lid.
Keep refrigerated until ready to consume.
Best if enjoyed the next day.
The longer this sits, the better it tastes!