Zest of 1 key limeand juice squeezed from the same key lime
1 1/25 by 2 1/2 inch honey graham crackers
2/3cupof milka little more if you like it thinner
About 2 tbs of graham cracker crumbs for the rim
Milkshake: Combine ice cream, fruit bar, milk and graham crackers in the blender. Zest the key lime into the blender. Cut the key lime in half and squeeze it into the blender as well. Blend until nice and smooth.
Rim: In a plate, place the graham cracker crumbs in a wide mount. Rub the squeezed half of the key lime around the rim. Roll the glass rim in the graham crackers until it's coated.
Transfer the milkshake into the glass and garnish with a couple of graham crackers.