Absolutely divine with a glass of bubbly. These freeze really well, so keep a stash in the freezer for impromptu guests!
1 cup plain flour
3/4 cup grated Parmesan cheese
7 tbs. soft butter
1 egg yolk
Mix all the ingredients together – using a bowl and spoon, mixer or food processor, as wished – until a golden dough begins to form a clump. Turn it out onto a surface and knead for about 30 seconds until smooth. Divide in two and make each into a cylinder about 1 1/4″ in diameter. Make sure the ends are flat, so that the cylinder resembles a coin roll. Wrap each in plastic wrap and chill for at least 45 minutes or up to 3 days or freeze.
Heat the oven to 350°F and cover a baking sheet with parchment paper. Cut the dough into thick 1/2″ rounds and bake for 15-20 minutes. They should be just beginning to turn a pale gold at the edges. Leave to cool before serving.