Step 1

Add all the sardines minus the olive oil from the can in a food processor. Set aside olive oil in the can.

Step 2

Add juice of lemon, diced onions, chopped parsley, butter cubes, and tomato paste (optional) to the food processor.

Step 3

Pulse for a few seconds until roughly combined, add a spoonful of olive oil from the can and continue to pulse. Pause and taste the spread, then add salt and pepper to taste. Add more olive oil if the consistency is too thick. Keep pulsing until you get a smooth texture adding more olive oil as needed.

Step 4

Serve with toasted bread or crackers.