Pili pili and peri peri sauce are similar, but not the same. The main similarity is that the two sauces have the same base ingredients, namely, tomatoes, garlic, salt, and African bird eye chilis, which are normally blended into a smooth paste. Peri peri sauce, whose usage has been popularized over time by the popular restaurant chain Nandos, and whose origin is disputed as Portugal, is more common towards the Southern part of Africa in countries such as Angola and Mozambique. It normally uses more ingredients and tends to have vinegar as its key acidic component, instead of lemon. Pili pili style sauce is more common in Swahili-speaking Eastern African countries and Central African countries such as Congo and Ivory Coast.