Tahini Thumbprint Cookies

Ingredients

• 1 and 1/4 cups all purpose flour, such as Glicks
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 teaspoon salt
• 3/4 cup smooth natural tahini, such as Mighty Sesame Tahini
• 1/2 cup (1 stick) margarine, softened
• 1/4 cup packed light brown sugar
• 1/4 cup granulated sugar
• 2 tablespoons Gefen Vanilla Sugar
• 1 egg
• 1 teaspoon vanilla extract
• 1/2 teaspoon fresh orange zest (optional)
• 4 ounces Elite Bittersweet or semisweet chocolate, finely chopped
• 1 teaspoon Gefen Light Corn Syrup
• 2 tablespoons margarine
• 1/2 teaspoon coarse sea salt or kosher salt