Prepare the Ingredients as instructed.
Prepare the Almond Bostock: Place the slice of brioche on the prepared baking sheet. Spread jam evenly over the top.
Make the Almond Cream (frangipane): In a small bowl, cream together butter and sugar until light. Add almond flour, all-purpose flour, egg, milk, vanilla extract, and almond extract (if using). Mix until smooth and creamy.
Assemble and Bake: Spread the almond cream evenly over the jam-covered bread, right to the edges. Sprinkle sliced almonds on top. Bake for 14–16 minutes, until golden, puffed, and slightly crisp on top.
Make the Pumpkin Green Smoothie: In a blender, combine pumpkin purée, banana, spinach, cinnamon, ginger (if using), maple syrup, and milk. Blend until smooth and creamy. Adjust sweetness or thickness as desired.
Serve: Dust the warm bostock with powdered sugar if desired, and serve alongside fresh fruit and pumpkin green smoothie.