sour cream and lime pie

Ingredients For sour cream and lime pie

• 1

  9 inch pie shell baked
• 1 c

  sugar
• 2 lg

  limes zested about 2 tsp.
• 1/3 c

  fresh lime juice
• 3 Tbsp

  cornstarch
• 1 c

  heavy cream
• 1/4 c

  butter
• 1 c

  sour cream
• 8 oz

  cool whip