These cupcakes are a request from him, and I happily obliged. I had come across the recipe for it on she bakes & she cooks years ago before I even expressed an interest in baking, and I made a mental note to try, but it never materialized (partly because I never had Nutella around the house).
I did not notice that the recipe calls for no liquid ingredients (other than eggs) until I saw how thick the batter was. This made it a little hard to swirl, but otherwise I had no problems with the batter. Also, unlike regular marble cakes where the chocolate part consists of the batter mixed with chocolate or cocoa powder, in this case, the chocolate part is solely the Nutella dolloped on top of the cake batter and swirled together to create the marbling pattern.
The combination of Nutella and cake is wonderful, as the cake itself is not very sweet, so the nutty chocolate sweetness from the Nutella lends a nice contrast. I'm not sure if I like the cake on its own because it's a tad on the dry side (as well as a little bland), but it definitely works for this recipe since the Nutella is what gives the cupcakes their distinct flavour. The most important thing is that the requester liked them a lot!
recipe from Baking Bites
yields about 20 cupcakes
140 gr (10 tbsp) unsalted butter, softened
3/4 cup granulated sugar
3 large eggs, at room temperature
1/2 tsp vanilla extract
1 3/4 cups all-purpose flour
1/4 tsp salt
2 tsp baking powder
Nutella or other brands of chocolate hazelnut spread
1. Preheat oven to 325ºF. Line muffin tins with cupcake liners.
2. Cream the butter and sugar until light, about 2 minutes. Add the eggs one at a time, mixing until the egg is fully incorporated after each addition. Add vanilla extract.
3. Stir in flour, salt, and baking powder until everything is mixed well and no flour remains.
4. Fill the muffin tins with the batter, about 3/4 full. Then add about 1 tsp of Nutella on top of the batter. Swirl the two together to create a marbled design; don't over swirl.
5. Bake for 20 minutes; test for doneness using a toothpick or skewer. Cool completely on a wire rack.