Old Fashioned Buttermilk Pie

Ingredients

• 4 large eggs
• 1 cup buttermilk
• 1/2 cup melted butter
• 1 tsp vanilla
• 2 tbsp flour
• 1 pinch salt
• 1 1/4 c cup sugar
• 1 unbaked deep dish pie crust
• 1-2 cups thawed frozen berries
• 2 cups whipped cream