Blueberry Coffee Cake Muffins with Streusel | Recipe Cart

Ingredients

• 1/3 cup all-purpose flour
• 1/3 packed light brown sugar
• 1 teaspoon ground cinnamon
• 4 Tablespoons unsalted butter, cold and cubed
• 5 Tablespoons unsalted butter, softened
• 1/3 cup vegetable oil
• 1 cup sugar
• 2 large eggs
• 2 1/4 cups all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1 cup sour cream
• 2 teaspoons vanilla extract
• 1 1/2 cups blueberries, divided