Banana bread with honey butter & blueberries

Ingredients

• 125 gram butter, melted
• 3 tablespoon (heaped tbsp) honey
• 2 large eggs
• 2 large bananas, mashed
• 1/2 cup walnut pieces
• 1 teaspoon vanilla extract
• 3/4 cup sultanas, soaked in ¼ cup boiling water
• 175 gram plain gluten-free flour
• 2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 cup fresh blueberries, to serve
• Honey butter
• 100 gram butter
• 1/4 cup honey