Butter Bean Custard Pie

INGREDIENTS

• 1 cup butter beans
• 3 cups water
• 2 cups white sugar
• 1 tablespoon all-purpose flour
• 1/4 cup butter
• 1 tablespoon vanilla extract
• 1 pinch salt
• 2 eggs
• 1/4 teaspoon ground cloves
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon ground cinnamon
• 1/4 teaspoon half-and-half cream
• 1 recipe pastry for a 9 inch single crust pie