Presoak a clay pot, top and bottom, in water for 15 minutes.
Peel and slice the peaches, then place them in the bottom of the presoaked pot. Combine the brown sugar, granulated sugar, gelatin, chopped nuts, and salt and pour over the peaches. Dot the top with the butter, then add the Kirsch and top with crumbled macaroons.
Cover the pot and place it in a cold oven.