Melt butter over medium heat.
When most of it is melted, add garlic slices and sage leaves and gently sauté stirring frequently.
As soon as the garlic and butter start turning brown, ( about 2 minutes) remove from fire and set aside In the pan (They will continue to cook after you have removed them from the fire).
Cook pasta of your choice then mix thoroughly with the sauce. Serve with freshly ground black pepper, lemon zest and Paremesan cheese.