If you haven't been to Cocolat on Rundle Street before, you must try their award winning gelato. If you love Ferrero Rocher, go for the Cocolat Rocher gelato, which was named Champion in the 2011 Australia Grand Dairy Awards and claimed Gold in the 2010 South Australia Dairy Awards. The full list of flavours is available on their website. The shop has an adequate number of tables, but it usually gets quite busy after 7pm so it's best to arrive early if you want to avoid the crowds.
When it comes to blocks of chocolate, one of my favourites would have to be Cadbury's Top Deck - milk chocolate with creamy white chocolate on top. I had never experienced a block of Top Deck chocolate before coming to Australia and I fell in love with the stuff at first square. At Cocolat, you can order your Top Deck in liquid form as a hot chocolate. The Cocolat hot chocolates are generally quite milky, but I enjoy the combination of the white chocolate and milk chocolate flavours in the Top Deck so it's my pick from the drinks menu.
In terms of desserts, you have an entire display case to choose from full of cakes, muffins, cupcakes, and handmade chocolate truffles. If you can't decide, I strongly recommend the Peanut Butter Brownie for only $5.50. It's a dense peanut buttery base with a fluffy chocolate top. If you love Reese's and/or peanut butter with chocolate, you're going to love this one. It comes with some melted swirled chocolate and whipped cream on the plate, but a cup of creamy French Vanilla gelato (winner of Gold in the 2010 South Australia Dairy Awards) compliments the brownie perfectly!