This New Potato and Pea Presse is a delightful and elegant dish that combines the creamy texture of new potatoes with the freshness of peas. The potatoes and peas are cooked until tender, then mashed together with butter and cream to create a smooth and velvety mixture. The presse is then layered with slices of smoked salmon and chilled until set. Serve this dish as a starter or light lunch, accompanied by a crisp green salad.