It's up to you whether or not you spill the beans and reveal what's behind these brownies' incomparable moistness and distinctive flavor, but rest assured they will be universally adored, even by kids (who probably don't need to know the secret ingredients after all). Just as canned pumpkin puree has long been a trusted way to prepare brownies without all the fat, so too can pureed sweet potatoes, as in this recipe, which also calls for pureed dates for extra flavor and for a "fudgy" consistency, without the need for melted chocolate.
- Line a small, square baking pan with parchment paper. Set aside.
- Peel the potatoes, cut into cubes and cook for about 20 minutes until tender.
- Place the potatoes and dates in a food processor and puree until smooth.