These small batch banana muffins combine the tangy depth of sourdough discard with the sweetness of ripe bananas and a crunchy espresso streusel topping, perfect for cozy mornings or afternoon snacks.
Use ripe bananas with brown spots for maximum sweetness. Do not overmix the batter to keep muffins tender. Use cold butter for the streusel to achieve a crumbly texture. Rotate the pan halfway through baking if your oven has hot spots. Chill streusel topping before adding if it tends to sink.
Keywords: sourdough discard, banana muffins, espresso streusel, small batch, easy muffins, breakfast, snack, coffee flavor