Blackberry Swirl Muffins with Honey Butter

Bahan-bahan (18 porsi)

• 1/2 cup melted coconut oil or canola oil
• 1/2 cup real maple syrup
• 2 teaspoons vanilla extract
• 1 cup buttermilk
• 1 cup plain greek yogurt
• 2 eggs
• 1 1/2 cups all-purpose flour
• 1 cup white whole wheat flour
• 2 teaspoons baking powder
• 1/2 teaspoon kosher salt
• 1 tablespoon orange zest
• 2 cups fresh blackberries
• 4 tablespoons salted butter, at room temperature
• 2 tablespoons honey
• 1/2 teaspoon cinnamon