Jalapeños are the most popular chile peppers in the US. This is probably due to the availability and versatility of the chile. Jalapeños have a balanced combination of flavor and heat. The demand for these have caused breeders to develop a broad range of varieties.
3 plum tomatoes, halved
3 garlic cloves, unpeeled
1 red or green jalapeño pepper, halved
1 medium-size white onion, cut into 16 wedges
1 1/2 tablespoons fresh lime juice
3/4 teaspoon kosher salt
1/3 cup chopped fresh cilantro leaves
1. Heat a 12-inch cast-iron skillet or griddle over medium heat 5 minutes. Place tomatoes, cut side down, in skillet, spacing evenly; add garlic and jalapeño pepper. Cook, turning occasionally, about 6 minutes or until slightly charred and softened. Transfer tomatoes and jalapeño pepper to a blender or food processor. Peel garlic, and place in blender. Add onion wedges to skillet, and cook 5 to 6 minutes or until slightly charred and softened. Transfer onions to blender.
2. Process vegetables 30 to 40 seconds or to desired consistency. Add lime juice and salt to blender, and process until combined. Cool completely (about 10 minutes). Stir in cilantro. Serve at room temperature, or refrigerate in an airtight container up to 3 days.
Note: For a redder salsa, use red jalapeño peppers.