A recipe of this cocktail I’ve found in Cocktail and Mixed Drinks by Anthony Hogg (1979).
25 ml Tequila (Jose Cuervo Classico)
12 ml Galliano
12 ml creme de banana (Bols Banana)
12 ml milk
6 ml grenadine
6 ml fresh lemon juice
Shake. Add grenadine in a glass. Garnish with a lemon wheel.