Inspired by a true classic - Lemon Drizzle Cake - these Easy Sourdough Lemon Muffins are a quick and delicious way to use up that sourdough discard to make a wonderful zingy treat! Perfect for a sweet breakfast nibble or a snack to pack for a lunch break at work, these sourdough muffins can also be turned into a decadent cupcake! Simply add icing on top!