Summer fruit at its peak needs only a little embellishment to make an elegant dessert.
To make plum sauce, place plums in a saucepan with 1/2 cup water, sugar, and cinnamon. Simmer until fruit has broken down and become mostly liquid, about 10 to 15 minutes. Put through a sieve or colander, and discard solids. Adjust sugar to taste. Let cool.
Place ricotta in a bowl, and stir in honey. Drizzle more honey over the surface of cheese.
Wash and cut the fruit into serving-size pieces. Arrange on a platter, and garnish with mint. Serve with the plum sauce and ricotta on the side.