Cook the pasta following instructions. Meanwhile, trim the agretti, getting rid of any red root, and finely chop the garlic. Melt the butter in a pan and sauté the garlic and agretti for about 5 minutes.
Add milk, season to salt and pepper, and throw in the spaghetti.
Serve immediately in a nest-shape, with a few slivered almonds and a spoonful of cheese on top.