Heat the cooking fat to 325 F. Be careful with the hot oil and monitor the temperature closely.
Cooking fat for deep frying
Deep fry the onion rings for about 8 minutes, until lightly blackened. Remove from the oil and set aside on paper towels.
2 large red onions
Deep fry the bell peppers for about 5 minutes, remove and set aside on paper towels.
2 red bell peppers
Add the chilies to the oil and deep-fry for about 4 minutes, until black. Remove and set aside on paper towels.
5 red chilies
Repeat those steps for the ginger, about 5 minutes and the garlic, for just 2-3 minutes.
¼ lb fresh ginger, 20 garlic cloves
Remove the pan from the heat and let the fat cool down. This fat can be reused for your cooking purposes and will feature a nice flavor.
Place all the deep fried ingredients in the bowl of a food processor and process to a paste.
Add the tomato paste and sea salt and process again to combine.
3 ½ teaspoon tomato paste, ½ tablespoon salt
Store in a container, topped off with parchment paper.