Preheat the oven to 375° F. In a medium bowl, stir the cookie crumbs and salt together to combine. Add the butter and mix just until the mixture clumps together. If it looks dry, add an additional 1 tablespoon melted butter.
Press the cookie mixture into the pie plate evenly. Transfer to the oven and bake until golden brown, 10 to 15 minutes. Cool completely.
In a small bowl, bloom the gelatin in cold water for 5 minutes, then melt it in the microwave until liquid.
In the bowl of an electric mixer, whip the heavy cream on medium-low speed until frothy. Gradually add the vanilla sugar and continue to whip it until it forms soft peaks.
Add the mascarpone, vanilla extract, and melted gelatin. Mix until the mixture is fully combined and it reaches medium peaks.
Pour the mascarpone mixture into the cooled cookie crust and spread it evenly. Work quickly, as the mixture will set fast since it is cold. Arrange the fruit on top of the filling.
In a small pot, warm the honey until very fluid. Gently brush the fruit with the honey. Keep the pie chilled until ready to serve.
I always carry three kinds of hot sauce in my purse. I have a soft spot for making people their favorite dessert, especially if it's pie. My first cookbook, The Fearless Baker, is out on October 24, 2017.