Mix the butter and garlic until foamy and season with rosemary and salt.
Toasts:
Brush all bread slices with rosemary butter. For 4 slices of toast, cut out 1 roundel (approx. 7cm diameter), place the toast frame on the remaining slices of bread, press down firmly. Place the toast slices and roundels on a baking sheet lined with baking paper. Carefully slide 1 egg each into the recess.
To bake:
About 10 minutes in the middle of the oven preheated to 200 degrees. Season the eggs with salt. Serve with rondelles.
Tip:
Beat the eggs one by one in a bowl. So you can still remove eggshells and check whether the yolk is whole.