Measure out red wine, tequila, liqueur, yoghurt and agave syrup and add to the shaker with ice.
Shake until cold, then add pour into the glass.
Top with lemonade and gently stir.
Add a garnish to the side of the glass and serve.
Scientist's Notes
This Pina Colada style wine cocktail we were going to call a "Black Colada", but after adding the yoghurt it turned a mauve-pink colour. It was well balanced and creamy, but feel free to adjust the sweetness to taste with the agave syrup.