"Create a fudgy banana and oats brownies recipe that is acne-safe, contains no sugar, no butter, and no honey, using only two bananas as the sweetener. The recipe should yield 8-10 slices, have a slightly crispy top, and be visually appealing and clear like a Pinterest-worthy bakery recipe. Include ingredients and instructions that maintain fudginess and a crackly top without added sugar or honey."