Pickled Cherry Tomatoes, Red Onions, and Cucumbers

These Pickled Cherry Tomatoes, Red Onions, and Cucumbers are crisp, tangy, slightly sweet, and incredibly easy to prepare. Fresh vegetables soak in a simple homemade vinegar brine flavored with oregano, red pepper flakes, and fresh dill. They make a refreshing addition to sandwiches, salads, grilled meats, burgers, or appetizer boards.

Ingredients

• 1 pint cherry tomatoes
• ½ red onion, thinly sliced
• ½ cucumber, thinly sliced
• 1 cup white vinegar
• ½ cup water
• ¼ cup granulated sugar
• 1 teaspoon salt
• ½ teaspoon dried oregano
• ¼ teaspoon red pepper flakes
• ¼ cup fresh dill, chopped

Instructions

1. Wash the cherry tomatoes and cucumber thoroughly and pat them dry. Thinly slice the cucumber and red onion. The cherry tomatoes can be left whole or halved if you prefer them to absorb the brine more quickly.
2. Place the tomatoes, cucumber, and sliced red onion in a clean heat-safe glass jar or container. Arrange the vegetables loosely so the pickling liquid can circulate around them.
3. Add the white vinegar, water, sugar, salt, dried oregano, and red pepper flakes to a small saucepan.
4. Bring the mixture to a gentle boil over medium heat, stirring until the sugar and salt have completely dissolved. Remove the saucepan from the heat.
5. Carefully pour the warm pickling liquid over the prepared vegetables until they are covered by the brine.
6. Add the chopped fresh dill and gently stir or shake the container so the herbs and seasonings are evenly distributed.
7. Allow the jar to cool before covering it tightly. Transfer it to the refrigerator and chill for at least 2 hours before serving. For a stronger pickled flavor, refrigerate overnight.

How to Serve

These quick-pickled vegetables are delicious straight from the refrigerator. Serve them alongside grilled chicken, beef, fish, sandwiches, wraps, or burgers. They are also an easy way to add bright acidity and crunch to grain bowls and fresh salads.

Tips for the Best Pickled Vegetables

Choose firm cherry tomatoes and a crisp cucumber for the best texture. Avoid vegetables that are overly ripe or soft because they can become mushy after sitting in the brine.

For a milder pickle, reduce the amount of red pepper flakes. For extra heat, add a few additional flakes or a few thin slices of fresh chili pepper.

Can You Prepare Them Ahead?

Yes. In fact, the vegetables taste even better after they have had several hours to absorb the seasoned brine. Preparing the jar the evening before serving is an easy way to develop more flavor.

Storage

Keep these quick-pickled vegetables covered and refrigerated. Always use a clean utensil when removing vegetables from the jar. For the best quality and texture, enjoy them within about 1–2 weeks. This is a refrigerator pickle recipe and is not intended for shelf-stable canning.

Frequently Asked Questions

Can I use apple cider vinegar?

Yes. Apple cider vinegar will give the vegetables a slightly fruitier and less neutral flavor than white vinegar.

Should I cut the cherry tomatoes?

Either method works. Whole tomatoes stay firmer, while halved tomatoes absorb the pickling liquid more quickly.

Can I add other vegetables?

Yes. Thinly sliced bell peppers, radishes, carrots, or jalapeños can be added for extra color, flavor, and crunch.

Do these pickles need to be refrigerated?

Yes. This recipe uses the quick refrigerator-pickling method and should remain refrigerated rather than being stored at room temperature.