Sprinkle the raspberries with jelly sugar and bring to a boil over medium-high heat. Cool to room temperature and refrigerate.
Mix all the components of the lemon cream thoroughly and refrigerate.
Roll the slices of toasted bread thinly and cut off the crust. Cut each slice into 4 pieces and grease each piece with butter on both sides. Bake in the oven for 15-20 minutes.
Mix sugar and cinnamon. Remove the churros from the oven, coat in the cinnamon-sugar mixture, and cool to room temperature.
Layer the raspberry jelly, lemon cream, fresh raspberries, and grated lemon zest into dessert glasses. Serve with the churro sticks.