Moist, tender banana bread studded with mini chocolate chips and a shiny, crackly top. Simple to mix in one bowl with ripe bananas, butter, oil, and sour cream for a soft, bakery-style loaf.
Start checking doneness at 55 minutes; ovens vary. Cool completely to avoid a gummy crumb. Store wrapped at room temperature for 3–4 days; freeze up to 3 months. Variations: add cocoa for double chocolate, walnuts for crunch, coconut, espresso, or a peanut butter swirl. For muffins, bake at 350°F for 18–22 minutes. Use very ripe or thawed, drained frozen bananas for best flavor.