Cranberry & Pear Holiday Pie

Ingredients

• 3 cups (12-oz) cranberries
• 1 1/2 cups sugar
• 1 can (8 3/4-oz) crushed pineapple, drained (reserve liquid)
• Pastry for a 9" two crust pie
• 3 tablespoons flour
• 1/4 teaspoon salt
• 1/4 teaspoon ground cinnamon
• 1 can (15 1/4-oz) pear halves, drained and cut into halves