Gather your ingredients and tools: a large glass trifle bowl, a whisk, a sharp knife, and a mixing spoon.
Slice the spiced cookies or cake into small, bite-sized pieces, creating a crunchy base for your layers.
Pour a layer of pumpkin puree into the bottom of the trifle bowl, spreading it evenly with a spoon until the surface looks smooth and bright orange.
Add a handful of mixed berries over the pumpkin layer, distributing them evenly for a burst of color and tart flavor.
Spoon a layer of whipped cream over the berries, smoothing it gently to create a soft, white contrast.
Place a layer of spiced cookies or cake pieces over the whipped cream, pressing them slightly into the cream to nestle them in place.
Repeat the layering process—pumpkin, berries, whipped cream, and cookies—until the bowl is filled, ending with a final layer of whipped cream.
Sprinkle a pinch of edible glitter or colored sugar on top for a spooky shimmer, then chill the trifle in the fridge for at least 2 hours to allow flavors to meld.
Once chilled, serve the trifle with a long spoon, revealing the colorful layers and enjoying the festive, crunchy, and creamy textures.