Place tomatoes, cut side down, in skillet, spacing evenly; add garlic and jalapeno pepper.
Cook, turning occasionally, about 6 minutes or until slightly charred and softened.
Transfer tomatoes and jalapeno pepper to a blender or food processor.
Credit:Hector Sanchez
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.
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).
Serve at room temperature, or refrigerate in an airtight container up to 3 days.
Note: For a redder salsa, use red jalapeno peppers.
