Start by washing potatoes well. Slice in 1/4" slices, not slicing completely through the potato, so it stays intact. Slice cloves of garlic, thinly. Place slices of garlic gently in between slices of potato. Rub with a little olive oil. Combine butter, chopped dill, salt and pepper in a small bowl. Divide butter mixture into 4 equal parts. Rub butter mixture on top half of potato, wrap up in foil, leaving a vent in the top for steam to escape a bit. Bake at 400 degrees for 60 minutes for a medium/large sized potato. Your potato is finished cooking when you insert a smooth edged paring knife into the center of the potato and it is tender. (*My potatoes were not medium nor large, just in between I think and one hour suited them perfectly.)