I'm not sure, but since it's posted on an active blog you could ask over there and I bet the blogger, Chelsea, would tell you. She seems to be pretty good about answering everyone's questions. I found this to be a fine cake even without the crumbs. I actually used it to make cupcakes once. I bet you could make crumbs with flour, butter, and a sweetener like stevia. I'm not sure about alternative flour for the cake itself as I've never tried that.
Hummm,I wonder if I can make this with coconut or almond flour and sweeten with Stevia?
I'm not sure, but since it's posted on an active blog you could ask over there and I bet the blogger, Chelsea, would tell you. She seems to be pretty good about answering everyone's questions. I found this to be a fine cake even without the crumbs. I actually used it to make cupcakes once. I bet you could make crumbs with flour, butter, and a sweetener like stevia. I'm not sure about alternative flour for the cake itself as I've never tried that.