Key Lime Pie Shake

Add ice cream, milk, key lime juice, 1 graham cracker square, and sweetened condensed milk to the jar of a blender. Blend on high until smooth.

Pour milkshake into a glass; top with whipped cream and zest. To garnish, break remaining graham square in half, and place one graham into whipped cream, then crumble remaining graham over milkshake. Cut a lime wedge and tuck into whipped cream.