Scottish tablet

Tablet is a medium-hard, sugary confection from Scotland. Tablet is usually made from sugar, condensed milk, and butter, which is boiled to a soft-ball stage and allowed to crystallise. It is often flavoured with vanilla and sometimes has nut pieces in it. Tablet differs from fudge in that it has a brittle, grainy texture, where fudge is much softer. Well-made tablet is a medium-hard confection, not as soft as fudge, but not as hard as hard candy.

Source: Wikipedia