Roasted Serrano Pepper Sauce & Salsa
A bright, spicy, roasted serrano pepper sauce that doubles as a chunky salsa, dip, and marinade. Made with roasted serrano chiles, tomatoes, onion, garlic, cilantro, and lime, it’s versatile, fresh, and perfect for tacos, bowls, grilled meats, veggies, and more.
Ingredients
- 6-8 fresh serrano chiles stems removed; leave seeds for more heat or remove for milder sauce
- 3 medium Roma tomatoes halved lengthwise
- 1 small white or yellow onion peeled and quartered
- 4 cloves garlic skin on, for roasting
- 1 tablespoon olive oil or avocado oil
- 1/2 teaspoon fine sea salt
- 1/2 cup fresh cilantro leaves and tender stems loosely packed
- 2 limes, juiced about 3–4 tablespoons fresh lime juice
- 2-3 tablespoons water plus more as needed to adjust thickness
- 1-2 teaspoons honey or agave optional, to balance heat and acidity
- 1/2 teaspoon ground cumin
- 1/4 teaspoon smoked paprika optional, for a light smoky note
- Salt to taste, for final seasoning
- 1 small avocado optional, for a creamier dip-style sauce
- 2 tablespoons plain Greek yogurt or sour cream optional, for tangy richness
- splash white vinegar or apple cider vinegar optional, for a sharper hot-sauce-style flavor
Instructions
- Preheat the oven to 425°F (220°C). Line a baking sheet with parchment paper or foil. Add the serrano peppers, halved tomatoes (cut-side up), onion quarters, and unpeeled garlic cloves to the sheet. Drizzle with olive oil, sprinkle with 1/2 teaspoon fine sea salt, and toss so everything is lightly coated.6-8 fresh serrano chiles, 3 medium Roma tomatoes, 1 small white or yellow onion, 4 cloves garlic, 1 tablespoon olive oil, 1/2 teaspoon fine sea salt
- Roast for 15–20 minutes, turning the peppers and onions halfway through. The serranos should be blistered, the tomatoes softened, and the onions lightly charred on the edges. The garlic cloves should feel soft when gently pinched with tongs.6-8 fresh serrano chiles, 3 medium Roma tomatoes, 1 small white or yellow onion, 4 cloves garlic
- Remove the pan from the oven and let the vegetables cool for about 5 minutes until they are easier to handle. Squeeze the roasted garlic cloves out of their skins; discard the peels.4 cloves garlic
- Transfer the roasted serrano peppers, tomatoes, onions, and peeled garlic to a blender or food processor. For a milder sauce, remove some or all of the seeds and white membranes from the serranos before blending (wear gloves if your skin is sensitive).6-8 fresh serrano chiles, 3 medium Roma tomatoes, 1 small white or yellow onion, 4 cloves garlic
- Add the cilantro, lime juice, ground cumin, smoked paprika (if using), honey or agave (if using), and 2 tablespoons of water to the blender. If you want a creamier dip-style sauce, add the avocado and/or Greek yogurt or sour cream at this stage.1/2 cup fresh cilantro leaves and tender stems, 2 limes, juiced, 2-3 tablespoons water, 1-2 teaspoons honey or agave, 1/2 teaspoon ground cumin, 1/4 teaspoon smoked paprika, 1 small avocado, 2 tablespoons plain Greek yogurt or sour cream
- Blend on low, then increase the speed until you reach your desired texture. For a chunkier salsa, pulse until slightly textured. For a smoother hot-sauce-style consistency, add more water as needed and blend until very smooth. Taste and adjust with additional salt, lime juice, or honey as needed.6-8 fresh serrano chiles, 3 medium Roma tomatoes, 1 small white or yellow onion, 4 cloves garlic, 1/2 cup fresh cilantro leaves and tender stems, 2 limes, juiced, 2-3 tablespoons water, 1-2 teaspoons honey or agave, 1/2 teaspoon ground cumin, 1/4 teaspoon smoked paprika, Salt
- If the sauce is too thick, add more water 1 tablespoon at a time until it is pourable but still clings to a spoon. If you want a sharper, more hot-sauce-like flavor, add a small splash of white vinegar or apple cider vinegar and blend again.2-3 tablespoons water, splash white vinegar or apple cider vinegar
- Let the sauce rest for 15–20 minutes at room temperature, or chill in the refrigerator for a couple of hours. This allows the flavors of the roasted vegetables, lime, and spices to meld and deepen.
- Serve as a salsa or sauce with tortilla chips, tacos, burrito bowls, quesadillas, grilled chicken, fish, shrimp, steak, eggs, roasted potatoes, corn, or other vegetables. It also works well as a marinade when thinned slightly with extra lime juice and olive oil.
Notes
Storage: Store in an airtight container in the refrigerator for up to 5–7 days, or freeze in small jars or ice cube trays for up to 2 months. Thaw in the fridge or at room temperature. For a thicker relish-style spread, use less water and pulse only a few times. For a runnier hot sauce, add more water and a splash of vinegar and blend until fully smooth. Taste as you go—serrano heat can vary greatly. Balance sharp flavors with a bit more honey or agave; if it tastes flat, add a pinch of salt or an extra squeeze of lime. For families with different spice tolerances, make a milder base with seeded serranos, then blend extra serranos into a smaller portion for heat-lovers.
Nutrition
Calories: 25kcal
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