Maple Almond Banana Muffins

Bahan-bahan (16 porsi)

• 4 medium overly ripe bananas, mashed (about 1 1/4 cups mashed)
• 1/4 cup melted coconut oil
• 1/4 cup pure maple syrup
• 2 eggs
• 2 teaspoons vanilla extract
• 1 cup superfine almond flour
• 1 cup gluten-free oat flour
• 1 teaspoon cinnamon
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1 cup walnuts ((optional))
• 1 stick (8 tablespoons) salted butter, at room temperature
• 1/4 cup maple syrup or honey
• 1/2 teaspoon vanilla extract
• 1 teaspoon cinnamon
• 1/4 teaspoon cardamom
• sea salt