Kitchen Basics: Tomatoes

August 13, 2012

In her biweekly column, Kitchen Basics, Susan Pachikara of Cardamom Kitchen demystifies essential cooking skills with step-by-step instructions and her own handsome photos. Whether she's showing us how much brown sugar we're meant to "pack"(or is it cram?) into measuring cups or how to detect when our onions are properly caramelized, Susan is the nonna we never had -- until now. Now, go on and get cozy under her wing.

This week, Susan demonstrates how to peel, chop, and core tomatoes.


- Susan

In Illinois, midsummer is ushered in with the flash of fireflies and the radioactive buzz of dog-day cicadas searching for love. Fuzzy-faced sunflowers tower over Queen Anne’s lace and Black-eyed Susans. In the kitchen, the spotlight shifts from sweet corn to vine-ripened tomatoes, which spruce up salads, top backyard burgers, and bring the taste of summer to a slew of other dishes.

How to Select Tomatoes

Select tomatoes that are wrinkle-free and feel weighty in your palm. When given a gentle squeeze, the fruit should feel soft, but not squishy. Since ripe tomatoes have a relatively short shelf life, try to gobble them up as quickly as possible. If you end up with a surplus, store them at room temperature in a single layer. Avoid chilling them in the refrigerator as it makes their lush flesh grainy. 

How to Peel Tomatoes

Tomatoes must be peeled (and seeded) to produce bisque and other silky, smooth dishes. It’s a simple process that can also be used to skin peaches and other stone fruit.

Hold the tomato with the bottom side facing up. With a sharp chef’s, paring, or serrated knife, cut an "x" in the skin. Repeat with the rest of the tomatoes.

cut tomatoes

Fill a large bowl with water and ice and set it aside. 

Bring a large pot of water to a boil. Carefully lower each tomato into the boiling water, using tongs or a deep ladle. After 45 seconds, transfer each tomato to the ice water bath to stop the cooking.

shocked tomatoes

Peel away the skins, beginning at the cross of the "x."

peel tomatoes

How to Remove Seeds from Tomatoes

Slice the tomato (peeled or not) in half widthwise. Hold one half of the tomato over a bowl. Use your thumb and index finger to gently force out the seeds.

deseeding tomato

If the seeds cling to the flesh, gently tap the tomato against the cutting board, cut side down. 

tomatoes seeded

How to Slice Tomatoes

The first step in slicing tomatoes is removing the core. Although it’s commonly done with a paring knife, I like the idea of removing it with a thin-edged measuring spoon as it’s a bit safer (making it a good job for kids).

Pierce and then encircle the flesh surrounding the stem end with a measuring spoon.


Place the tomato on its side on a cutting board, and then slice across the tomato widthwise.  

sliced tomato

How to Chop Tomatoes

Remove the core with a measuring spoon, as illustrated above. Place the tomato on its side on a cutting board and slice it in half.

halve tomato

Place one half on the cutting board with the cut side down. Rest one hand on top of the tomato to hold it in place. With your other hand, hold the knife parallel to the cutting board and slice across the tomato.

slice tomato

Hold the knife perpendicular to the cutting board, and slice across the tomato.

chop tomato

Rotate the tomato 90 degrees. Hold the knife perpendicular to the cutting board and cut across the tomato again.

chop tomato

How to Prepare Tomatoes for Stuffing

Remove the core with a measuring spoon, as illustrated above. Place the tomato on its side on a cutting board and slice off the top quarter. Through the enlarged opening, carefully scoop out the ribs and seeds with a spoon.

scoop out tomato

tomato rice
Susan uses diced fresh tomatoes in her garlicky, parsleyed tomato rice

I’d love to see your tips for prepping tomatoes! Share them with your fellow cooks in the comments section below.

Are you new to cooking? Tell me what skills you'd like to learn and your idea could be featured in an upcoming post!

Want more basic tips from Susan? Check out her previous post: Kitchen Basics: Whipped Cream.

All photos by Susan Pachikara.

Susan writes the blog Cardamom Kitchen to share her culinary experiences as an Indian-American rooted in the Midwest. 

susan cardamom kitchen

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