For the Tomato – Horseradish dressing (can be made in advance)
Mix all the ingredients together and chill
For the Melbourne Cup Crab and Pineapple Appetizer
Arrange the watercress on a large plate or six small plates.
Place the pineapple on top of the watercress.
Mix 1-2 tsp of the dressing through the crab -just enough to help it stick together. Pile the crab onto the pineapple rings
Spoon a little bit of the sauce over the crab (a little goes a long way, so go easy) or serve the dressing on the side. Sprinkle with the chives and mint.
For the MC Cocktail
Fill a long glass with ice. Add the Midori, Green Chartreuse and Lemon Juice. Add pineapple juice to about 2 cm below the rim of the glass.