Wash the rosemary and shake dry. Pluck the needles from the lower halves of the twigs and put them aside. Cut twigs at the lower end at a slight angle. Finely chop 1 teaspoon of needles. Finely grate the Parmesan cheese. Bring 450 ml water and 1/2 tsp salt to the boil, stir in polenta.
Bring to the boil briefly, remove from the heat and allow to swell for about 2 minutes.
Stir in pepper, chopped rosemary, parmesan and 1 tablespoon of oil. Grease a small rectangular form, add polenta and smooth it down to a rectangle (approx. 15 x 20 cm). Let it cool down.
In the meantime, finely chop 1 tbsp. rosemary needles. Use the remaining rosemary needles for other purposes. Peel garlic and chop very finely. Mix 3 tbsp. oil, chopped rosemary, garlic and 1 tsp. pepper. Pour mozzarella balls into a sieve and drain well.
Mix into the garlic and rosemary oil. Leave to stand for a while.
Cut polenta into about 40 cubes. Heat clarified butter in 2-3 portions in a grill pan (alternatively in a normal pan). Fry the polenta cubes in it in portions while turning them golden yellow, take them out.
Put a mozzarella ball and a polenta cube on each sprig of rosemary. Arrange on a plate and sprinkle with the remaining garlic and rosemary oil.