This happened to be the rare time, where I couldnt log into computer and had to dig a recipe soon. I had to put the cupcakes in the oven 15 min over the required baking time. On the top was a filmy layer. The only thing that was different from the recipe - 1 tbsp less butter. I asked my daughter how the cupcake is, as thats what the recipe refers to them as. She said "Muffin, not cupcake". goodness gracious, I must have been sleeping while adding the sugar. I have never seen so much sugar added, almost double the flour. All that just to compensate for the walnuts?