You could make a big crumble, but it's much more fun and special to have your own personal one! A dollop of a good vanilla ice cream is the icing on the cake, so to speak! :) Adapted from Barefoot Contessa At Home cookbook.
Place peaches in boiling water to cover for 30 seconds-1 minute, until skins peel off easily. Place them right away into cold water.
Peel peaches, slice into thick wedges, and place in a large bowl. Add the lemon zest, lemon juice, sugar and flour. Toss well to coat.
Gently mix in blueberries. Allow mixture to sit for 5 minutes. Spoon the mixture into ramekins or custard cups.
Combine flour, sugar, brown sugar, salt, cinnamon, and butter in bowl of an electric mixer fitted with a paddle attachment. Mix on low speed until the butter is the size of peas(you can do this by hand too if need be). Rub the mixture with your fingertips until it is in big crumbles, then sprinkle evenly over the fruit.
Bake for 40-45 minutes, until the tops are browned and crisp and the juices are nice and bubbly.
Serve warm or room temperature.
You may make these earlier in the day, keep in the fridge and bake just before dinner. Enjoy!