Dulce De Leche Cheesecake Squares

Ingredients

• 3 1/2 oz wheatmeal crackers (sometimes called digestive biscuits), crumbled (1cup)
• 2 tablespoons sugar
• 3 tablespoons unsalted butter, melted
• 1 teaspoon unflavored gelatin (from a 1/4-oz envelope)
• 1/4 cup whole milk
• 8 oz cream cheese, softened
• 2 large eggs
• 3/8 teaspoon salt
• 1 cup dulce de leche (12 1/2 oz)
• 3 oz fine-quality bittersweet chocolate (not unsweetened), coarsely chopped
• 1/2 stick (1/4 cup) unsalted butter, cut into pieces
• 2 teaspoons light corn syrup