Ingredients:
1/2 bunch coriander, stems and leaves washed and coarsely chopped
1 bunch culantro, washed and coarsely chopped
1 cubanelle pepper, seeds removed and coarsely chopped
1 red bell pepper, seeds removed and coarsely chopped
1 red onion, peeled and coarsely chopped
2 heads of garlic, cloves separated and peeled
1-2 plum tomatoes
2 tbsp pimento stuffed olives
Method:
Combine all ingredients in a food processor/blender and process until fairly smooth (but you still want to see a few pieces of garlic).
Store in an air tight container in the fridge. It'll keep good for a few weeks (or a nifty trick is to pour it into ice cube trays and freeze them... once frozen pop them out of the freezer tray, transfer them in a ziplock freezer bag and freeze for up to 6 months).