Cut the strips of bacon into quarters. Sizzle in a skillet until reddish-brown and mostly crisp.
Cut a pound cake into 1/4-inch slices. Then use a 1- to 1 1/2-inch cookie cutter to cut small circles of cake. You end up with about 60-70 circles, depending on the size of your pound cake.
Place some Nutella in a piping bag (or plastic bag with the corner snipped off) and layer the pound cake, Nutella and bacon strips, three pound cake slices high.
Drizzle a little extra Nutella on top and sprinkle with a touch of sea salt.