Good-Cooking - Blueberry Cream Muffins

Ingredients

• 4 eggs
• 2 cups granulated sugar
• 1 cup vegetable oil
• 1 teaspoon vanilla extract
• 4 cups all-purpose flour
• 1 teaspoon salt
• 1 teaspoon baking soda
• 2 teaspoons baking powder
• 2 cups (16 ounces) sour cream
• 2 cups fresh blueberries