This looks like a knock0ff of Kate's cake in the The Great British Baking Show (Season 5). I like Kate's use of thin layers of a simple white sponge cake better than the crepes. She also created the caramel sugared nuts with the spikes for her cake.

We got this recipe to work on the first try, but I must say we strayed widely from the recipe’s instructions, but not on the ingredients: 1. CREPES - we did not have a crepe pan, so needed to choose between an 8” & 10” non-stick pan. The bottom surface of our 8” pan was only 6”, so we went with the 10” pan that had an 8” bottom surface. There was no possible way that 2 Tbs of the crepe batter would work. We ended up doubling the batter per crepe to 1/4 cup. Crepes worked better without butter added to the pan. There is lots of butter in the batter and it was plenty. Flipping the crepes was very difficult. With chocolate in the batter, the crepes were extremely delicate. We ended up flipping the crepes onto a plate and then carefully with fingers moving it back. For our stove, pan was at medium low the entire time, cooked 2 min on first side until top was mostly dry, flipped using a plate, then cooked on the 2nd side for 30 sec - 1 min. Note: we didn’t stack the crepes coming off the pan for fear they would stick. They might not have, but we lost 2 crepes getting them to cook right, so we didn’t want to risk more. We would put the first crepe on a plate in the fridge to cool while cooking the 2nd. 2nd went on a new plate in fridge to cool. When 3rd crepe was ready, 2nd was moved onto wax paper on top of first. We continued this system so that crepes were totally cooled before stacking with wax paper in between. It took a couple of hours at least to make the crepes and got much easier as the batter warmed to room temperature. Cold batter is harder to swirl. Despite doubling the amount of batter used per crepe, we still ended up with 30 crepes (2 lost in our first attempts). 2. HAZELNUT FILLING - you definitely want to use the ingredients listed in the Martha Stewart hazelnut cream recipe. Others asked about hazelnut coffeemate, or linked to a different filling recipe. I can’t imagine those working or being as good. In the M.S. recipe for Hazelnut Filling, she lists “Hazelnut Cream” as an ingredient. We found it on Amazon: “Cream of Hazelnut from Sicily”. The brand is Vicente. It can probably be found at specialty grocery stores. 3. CHOCOLATE GLAZE - this was easy and came out as the recipe described. It does not, however, look like the picture. The picture implys a true glaze you can pour over the cake to coat. The recipe describes what you end up with...more of a floating. But it is delicious and worked out fine. 4. ASSEMBLY - We were extra sure that all the ingredients were cold. You put a lot less filling in then you think you should, barely enough to cover the crepe. But it comes out perfect in the end. The finished cake is about the size of a 2 layer cake in diameter and height. Ours was slightly domed in the center because swirling the batter results in slightly thicker middles on the crepes. 5. CANDIED HAZELNUTS - this went as expected. The sugar starts to harden fast, so work quickly. Although the crepe cake itself can sit a couple of days in the fridge once complete, the hazelnuts cannot. If you want to do the hazelnuts on top, wait and do them the day you serve the cake. 6. FINAL COMMENTS: We made the batter on day 1, cooked the crepes and assembled the cake with hazelnut garnish on day 2, ate it on day 4. By day 4, the spires on the hazelnuts had moistened in the humidity of the fridge and melted onto the cake. Not in a bad way, but less dramatic looking. This recipe didn’t get 5 stars from me simple because of the amount of work involved. Delicious, absolutely. Impressive to look at, definitely. But I probably won’t make it again unless I really want to impress, or experiment with different flavors.

I had no problems with the recipe- thank you previous commentors for your tips!- I have to say though that the cake wasn't nearly as high as the one pictured. I did use an 8" pan, so it's unclear to me why this would be.

The cake was much richer than I like but it went over well with everyone else. I had issues making my hazelnut cream and it was a little thinner than I had planned so as the 30+ crepes took shape it did begin to slowly slide so I put wooden skewers in it to hold it while it set in the refrigerator. Keep in mind this is not a big cake, it will be about 8 inches wide (given an 8in crepe pan and probably about 6 inches tall. I took two days making it, 1 for prep and chilling and 1 for finishing.

Also, when I look at the picture it seems like there is probably twice as much cream between the layers as what mine looked like (I used the 3 Tablespoons called for). For it to look like that cake I would probably have to have doubled the cream.

I made this for a dessert contest and won overall. For awhile though while making it I was ready to give up--it takes a long time to make and crepes aren't easy. I like to make the chocolate crepe recipe by itself... it'd be good with strawberries. Couple things.... I didn't have the hazelnut cream -whatever that is exactly- but I used part hazelnut coffee creamer and part ground-up hazelnuts. It worked really well; I food-processed the hazelnuts very fine. I halved the chocolate glaze recipe.

P.S. there is also a recipe for hazelnut cream here, that I think would work. http://www.marthastewart.com/355331/hazelnut-cream-tuiles The hazelnut cream that I found was simply sweetened nut butter. Be sure you are not using hazelnut coffee creamer, that is not what they are talking about.

This cake is epic, but it truly does take forever. I had no problems with stability, I am guessing those who did, did not whip the filling long enough after adding the butter. It is Swiss meringue buttercream, so after adding butter, it will get soupy, so whip the heck out of it until it's thick and fluffy again...it will be perfectly stable between the crepes if you do this. I also chilled my crepes before assembling. I made my own hazelnut cream in the food processor. It's just nut butter.

My third attempt to make this cake was this weekend, and it finally turned out perfect! I've had stability problems in the past as well, but this time I refrigerated the crepes until they were cold. Also, since we don't like hazelnut much, I used nutella chocolate creme or raspberry chocolate creme (found in the peanut butter aisle) instead and raspberry extract instead of vanilla (to cover up the faint hazelnut taste in the nutella) in the filling. It turns out amazing.

This was obnoxiously delicious!!!! Pure food pornography. ;-) I was a little nervous starting out as I read all the reviews about the stability of the cake but we had no trouble whatsoever. It did take about 8.5 hours of labor to pull it off however, so plan ahead! I think the most important part is to use actual hazelnut creme. I found it at Williams and Sonoma. I wasn't familiar with it prior, but it is basically the equivalent of the filling you find in a hazelnut creme filled chocolate.