Blueberry Streusel Muffins
["1 pkg. pound cake mix", "2/3 c. sour cream", "2 eggs", "1 1/2 c. frozen or fresh blueberries"]
["Preheat oven to 400\u00b0.", "Mix cake mix, sour cream and eggs in large bowl until blended.", "Fold in blueberries.", "Fill muffin cups 2/3 full.", "Sprinkle with Streusel Topping.", "Bake about 25 minutes."]
["cake mix", "sour cream", "eggs", "blueberries"]