Roughly chop the chocolate. Heat mascarpone, coffee, cocoa and salt while stirring. Add chocolate and melt while stirring. Place the chocolate fondue on a low heat on a warmer. Wash the grapes, dab dry and pluck from the panicles. Wash and halve the strawberries.
Break muffins into pieces. Peel kiwis and cut them into slices. Cut pineapple into 8 slices and peel. Arrange foam hearts, foam strawberries and fruits separately in small bowls. Prick the ingredients with prickers and dip them into the chocolate mixture