Secret to flat cakes: wet cake strips (i., Bake Even Strips) and wrap around the cake pans. They act as an insulator to help the cake bake evenly (flat). You can also use strips of towel: drench, wrap around the pans, and bake.
S’mores Cookies - What a great idea! Chocolate chip cookies with a marshmallow & mini chocolate bar on top! - I wonder if there is a recipe out there for graham cracker cookies that I could use instead of the chocolate chip.