Lemon Blueberry Muffins

Ingredients

• 1 teaspoon vanilla extract
• 6 1/2 Tablespoons unsalted butter-melted
• 1/4 teaspoon salt
• 2/3 cup Greek yogurt
• 1 Tablespoon grated lemon zest
• 1 tablespoon flour
• ½ teaspoon cinnamon
• 1/3 cup vegetable oil
• 2 eggs
• 2/3 cup granulated sugar
• 1/2 cup granulated sugar
• 2 Tablespoons fresh lemon juice
• 2 teaspoons baking powder
• 1 ½ cups all-purpose flour
• 1 cup all-purpose flour
• 1 and 1/3 cups blueberries-fresh or frozen