Prep Time 30 minutes mins
Cook Time 25 minutes mins
Resting Time 1 hour hr 30 minutes mins
Total Time 2 hours hrs 25 minutes mins
For best texture, use very ripe bananas with plenty of brown spots, as they add more sweetness and moisture to both the dough and filling, and resist adding extra flour even if the dough feels slightly sticky since a softer dough yields fluffier rolls. Letting the dough rise in a gently warm, draft-free spot (such as an oven with the light on) will help it double reliably, and if your kitchen is cool, the rise may simply take longer, so watch the dough rather than the clock. To make ahead, assemble the rolls in the pan, cover tightly, and refrigerate overnight, then bring to room temperature for about 45 minutes before baking. If you prefer less sweetness, frost just before serving and use only half the frosting, storing the rest in the fridge for another batch or as a spread for toast or waffles.