The tuna belly in olive oil from Olasagasti is a delicacy that highlights the quality and tradition of fish preservation. This part of northern bonito, known for its tenderness and delicate flavor, is considered the best among tunas. As an artisanal product, it's handmade, ensuring that each piece retains the freshness and character of the sea. This product is presented sliced, providing a unique texture that melts in the mouth. Perfect to enjoy in a salad, as an appetizer on toasts, or simply accompanied by bread. Valued by gourmets, this product pays tribute to the rich gastronomic tradition of northern Spain.