Preheat the oven to 350 degrees F.
In a medium bowl, combine the pretzel crumbs, butter, honey, and cinnamon, and mix until combined. Remove 2 tablespoons of the dough and spread on a small baking sheet. Press the remaining dough into an 8-9 inch pie plate. Transfer both to the oven and bake until toasted, about 8 minutes. Let cool completely before filling. Break the extra dough into crumbs and set aside for serving.
In a large bowl, using an electric mixer, beat the cream and vanilla on medium-high speed until soft peaks form, 2 to 3 minutes. Add the crème fraîche and sugar and beat until incorporated, 30 seconds. Chill until ready to use.
Spread the raspberry jam over the bottom of the cooled crust and then spoon the cream over top, spreading in an even layer. Cover and chill for 6 hours, preferably overnight, until firm.
Bring the honey to a low boil in a medium saucepan, simmer 1 minute and remove from the heat and stir in the peaches, tossing to combine. Let sit 10 minutes, until cooled.
Spoon a few peach slices over the cream, reserving the remaining peaches + honey for serving individually. Add a handful of raspberries and sprinkle on the reserve pretzel crumbs. Slice and serve immediately, topped with additional peaches and honey sauce.
