Mango Lime Tart - Rick Bayless

Ingredients

• 3 ounces (6 tbsp) butter
• 4 ounces (about 32) Mexican “Maria” cookies (or 16 Graham crackers)
• 3 tablespoons sugar
• 1 cup sugar
• 1/4 cup corn starch
• 1 1/3 cups cold water
• A big pinch of salt
• 6 egg yolks
• 1/3 cup fresh lime juice, plus the finely grated zest of 1 large lime
• 3 tablespoons butter
• 4 eggs whites (you should have 1/2 cup)
• 1 large ripe mango, peeled, flesh cut from the pit and cut into 1/4-inch dice
• Sprigs of mint, for garnish