Favorite Blueberry Muffins with Cinnamon Brown Sugar Streusel | Recipio - Recipe Organizer & AI-Powe

Ingredients

• 1/2 cup (100 g) brown sugar packed
• 1/2 cup (67 g) walnuts or pecans chopped
• 1 teaspoon cinnamon ground
• 1 3/4 cups (219 g) all-purpose flour spooned and leveled
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 cup (113 g) unsalted butter softened to room temperature
• 1/2 cup (100 g) granulated sugar
• 1/4 cup (50 g) brown sugar packed
• 2 large eggs at room temperature
• 1/2 cup (120 g) sour cream or plain/vanilla yogurt at room temperature
• 2 teaspoons vanilla extract
• 1/4 cup (60 ml) milk at room temperature
• 1 1/2 cups (210 g) blueberries fresh or frozen