I just pulled this salsa recipe from Philly Online at the recipe exchange. It looks like the one you are looking for.

ROASTED SALSA

3 Whole Tomatoes
1 Small Onion finely chopped
1 Jalapeno Pepper finely chopped
1-1/2 Clove Garlic
1 Tblsp Lime Juice
1/4 cup Chopped Cilantro
Salt & Pepper

Bake tomatoes on a metal sheet at 450 degrees or in barbeque until CHARRED
Dump everything in the blender and pulse until mixed and chopped. Don't overblend or you lose chunky feel.
Refrigerate for one hour to cool tomatoes.
Enjoy.