Aioli is a Provençal traditional sauce made of garlic, olive oil, lemon juice, and usually egg yolks. There are many variations, such as the addition of mustard. It is usually served at room temperature.
Catalan cuisine is a Mediterranean cuisine from Catalonia. It may also refer to the shared cuisine of Roussillon and Andorra, which has a similar cuisine to the Alt Urgell and Cerdanya comarques, often referred to as “Catalan mountain cuisine”. It is considered a part of western Mediterranean cuisine.
Escalivada is a typical preparation of Catalan cuisine that consists of several types of grilled vegetables, such as eggplants, sweet red peppers, red tomatoes, and sweet onions. Once well cooked on the grill, those vegetables are peeled and sliced in strips, the seeds removed, and seasoned with olive oil and salt, and sometimes with garlic as well.
Pa amb tomàquet or pa amb oli consists of bread — optionally toasted — with tomato rubbed over and seasoned with olive oil and salt. Sometimes garlic is rubbed on the bread before rubbing in the tomato. In many Catalan restaurants, the tomato mixture is pre-made and is brushed on the bread.