This is a Mexican take on this Scottish classic that I have been fortunate enough to sample in the Acapulco restaurant in Dublin, under the evocative name Chimi-Di:

Lay the Mars Bar on the tortilla, about 1/3 of the way up from the side closest to you. Cover the top in 1 to 2 layers of banana slices.

Roll up the tortilla thus: fold the short section closest to you over the bar, then fold the sides inwards and roll the whole thing over onto the longer remaining 2/3 of the tortilla until closed.

Fry in about 1 inch of oil, seam-side down at first, until lightly golden. You're not cooking anything here, just warming it - so don't overdo it.

Drain the excess oil from the tortilla, then place in the center of a plate and smother in hot butterscotch sauce. You can also use chocolate sauce, ice cream, nuts or whipped cream - or all of the above if you're trying to commit suicide by sugar. Enjoy!