Help making a cake from a recipe, problems, cake firmness, white choco cream and...?

You must have a good quality stand mixer and this particular recipe mentions using a heavy duty mixer always use shortening or cooking spray for pans and tap the extra flour out of the pans make sure there are no dry or un floured spots on bottom or sides , when making the basic cake batter you must add ingredients very slowly while beating air and volume into the cake batter ,eggs one at a time and beating well in between... marshmallow frosting is very tricky and the egg whites must be beaten until stiff peaks form also cream must be well beaten and this takes minutes.To be successful with a cake of this nature you must be fairly well experienced in cake baking and I look for a recipe is allrecipes.com type in devils' food cake another great place is cooks.com and kraftrecipes.com I like hershey'skitchens for lots of chocolaty cakes frostings & desserts .. some wonderful chocolate cakes like collector's cocoa cake and chocolate sour cream cake Here is an easy but very good recipe fro meringue frosting ~ 2 jars marshmallow cream (7oz each) 1 pound powdered sugar (about 4 cups) 2 sticks real er 2t. vanilla ( or if you like 1 t peppermint extract) beat er till soft slowly add marshmallow cream while beating slowly add sugar and vanilla beat until light and fluffy 2 to 3 minutes