Melt the chocolate following packet directions. Set aside to cool slightly.
Use an electric beater to beat cream in a bowl until soft peaks form. Fold in chocolate, vanilla and cinnamon until well combined.
Heat one-third of the butter in a large non-stick frying pan over medium-high heat. Add one-third of the pineapple. Sprinkle with one-third of the sugar. Cook for 3 minutes each side or until golden. Add one-third of the tequila. Bring to boil. Cook for 1 minute or until the mixture thickens. Transfer to a plate and cover with foil to keep warm. Repeat, in 2 more batches, with remaining butter, pineapple, sugar and tequila.
Arrange the pineapple on a serving platter and serve with the chocolate cream.
