Blended Berry Muffins with Sugary Tops

Berry Muffins:

• 3/4 cup coconut oil, melted
• 1/2 cup brown sugar
• 1/4 cup maple syrup
• 1/4 cup plain Greek yogurt
• 2 eggs
• 1 1/2 teaspoons vanilla
• 2 cups flour (280 grams)
• 2 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon high-quality kosher salt (reminiscent of Diamond Crystal)
• 2 cups frozen blended berries (I exploit the triple berry mix from Costco)
• 1/4 cup turbinado sugar for topping (brown sugar additionally works)

Honey Butter: 

• 4 tablespoons softened salted butter
• 1/4 cup honey