Eleanor's Banana Bran Muffins

Ingredients

• 2 1/3 cups whole-wheat flour
• 1/2 cup wheat bran
• 1/2 tsp salt
• 3/4 tsp baking soda
• 15 g granulated sugar
• 1 Tbsp plus 2 tsp unsalted butter, softened
• 1/4 cup honey
• 1 large egg
• 1 cup mashed ripe banana
• 1 cup milk
• 1/2 cup raisins (optional)

Method