CO Comal at Home
Salsas

Roasted Tomato Salsa with Adjustable Heat

Comal at Home · Updated 2026-07-19 · 4 min read
Roasted Tomato Salsa with Adjustable Heat
In shortFor a small batch of roasted tomato salsa, broil 1 pound of Roma tomatoes with half a white onion, one jalapeno, and one unpeeled garlic clove until softened and blistered, turning as needed. Peel the garlic, blend the vegetables briefly with 1 tablespoon lime juice and 1/2 teaspoon salt, then adjust. Start with only part of the chile for milder heat; you can add more, but cannot remove it.
Contents

Roast the vegetables for a deeper salsa

This small-batch salsa uses broiler heat to soften Roma tomatoes and create dark, concentrated spots on the onion, chile, and garlic. It yields about 1 1/2 cups. Chile heat varies widely, so the recipe roasts one whole jalapeno but adds it to the blender gradually.

Wash the tomatoes and chile under running water, dry them, and wash your hands and work surface before starting. Do not wash produce with soap.

Ingredients

Broil and turn the vegetables

Position an oven rack about 5 to 6 inches below the broiler and line a rimmed metal baking sheet with foil. Do not use parchment under a broiler. Halve the tomatoes lengthwise and cut the onion into two wedges. Leave the jalapeno and garlic whole.

Arrange everything cut side up and broil on high. Check the garlic after 3 minutes and remove it when softened with dark spots but not black throughout. Turn the chile and onion as they color. Turn the tomatoes once after their tops blister.

The vegetables usually need 8 to 12 minutes total, but broilers vary. Remove each piece when softened and well spotted. The tomatoes should release juice; fully carbonized skins taste bitter.

Blend in stages

When the garlic is cool enough to handle, remove its peel. Put the tomatoes, their tray juices, onion, garlic, lime juice, and half the jalapeno in a blender or food processor. Pulse several times for a coarse salsa.

Taste with the food you plan to serve. Add more jalapeno in small pieces until the heat suits you, then adjust salt. Blending the entire chile at once gives up that control.

For a smoother salsa, blend longer. If it is too thick, add water one teaspoon at a time. If watery, let it settle first; pulse-blending preserves more texture than making a foamy puree.

Adjust flavor without losing balance

Flat salsa may need a pinch of salt or a little more lime, but add one at a time. A very tart tomato needs less lime. A sweet peak-season tomato may welcome the full tablespoon.

For more char, use a dry heavy skillet instead of the broiler and turn the vegetables until softened and spotted. Keep the garlic in its skin and remove it earlier than the tomatoes so it does not burn.

Spoon the salsa over refried beans made from canned pintos for contrast between bright acidity and a creamy base.

Scale the batch without crowding the tray

To double the salsa, use two rimmed sheets or roast in batches. Crowded tomatoes trap steam, slowing the blistering that concentrates their flavor. Keep the vegetables in a single layer with a little space between pieces, and rotate the pan if one side of the broiler colors faster.

Round slicing tomatoes can replace Roma tomatoes, but they often release more liquid. Include their juices at first, then blend briefly and assess. If using a very large onion, weigh the portion rather than assuming half is equivalent; about 3 ounces keeps the onion from overwhelming 1 pound of tomatoes.

Cool and refrigerate promptly

Serve the salsa warm or cool it in a shallow, clean container. Refrigerate cut or cooked produce within two hours, or within one hour when the surrounding temperature is above 90 degrees Fahrenheit (32 degrees Celsius). Do not leave a communal bowl out indefinitely.

This is a fresh refrigerator salsa, not a tested canning formula. Do not water-bath can it. Discard it if mold, an off odor, or another spoilage sign develops. Find more adjustable chile and texture methods in Salsas.

FAQ

Can I make roasted salsa without a broiler?

Yes. Char the tomatoes, onion, chile, and unpeeled garlic in a dry heavy skillet over medium to medium-high heat, turning until softened and spotted. The process takes longer and needs attention so the garlic does not burn. Use the same blending and seasoning steps afterward.

Should I remove jalapeno seeds for milder salsa?

Removing seeds alone does not guarantee mild salsa because much of a chile's heat is concentrated in the pale inner ribs, and individual chiles vary. For control, roast the whole chile, then blend in a small portion, taste, and add more gradually. Wash hands after handling it.

Why is my roasted tomato salsa watery?

Tomatoes vary in water content. Pulse rather than puree, then let the salsa stand so its texture settles. If it remains thin, simmer it gently in a saucepan for several minutes, stirring, and cool before serving. Do not add extra onion or salt merely to hide excess water.

Do I need to peel roasted tomatoes?

No. Blistered skins contribute charred flavor and blend into a rustic salsa. Remove any fully burnt, papery pieces if they taste bitter. If you prefer a smoother result, peel after the tomatoes cool enough to handle, but expect to lose some of the roasted character.

How should I store homemade roasted salsa?

Transfer it to a clean, covered container and refrigerate promptly rather than leaving it at room temperature. FoodSafety.gov advises refrigerating cut or cooked produce within two hours, or one hour above 90 degrees Fahrenheit. Discard salsa with mold, an off odor, or other spoilage signs.

Can I use canned tomatoes for roasted salsa?

Fire-roasted canned tomatoes can make a useful pantry salsa, although their texture and acidity differ from fresh roasted tomatoes. Drain only if the can is very liquid, then blend with separately charred onion, chile, and garlic. Taste before salting because canned products vary in sodium.