In a large bowl, combine the Greek yogurt, maple syrup, freshly grated nutmeg, vanilla extract, and lemon zest. Whip the mixture for 3-4 minutes using an electric mixer or whisk until it becomes light, fluffy, and slightly increased in volume—this aeration creates a cloud-like texture that elevates the whole parfait. The whipping also helps distribute the spices and vanilla evenly throughout, ensuring every spoonful is well-flavored.

In a large trifle bowl or individual serving glasses, begin layering: start with a thin base of spiced yogurt mixture from Step 1, then add a layer of granola, followed by a generous handful of mixed berries. Repeat the layering 2-3 times, finishing with a final yogurt layer on top and a sprinkle of granola and fresh berries. I like to save the most beautiful berries for the top layer—it makes the presentation stunning. Work gently when layering to keep the distinct stripes visible rather than mixing everything together.

Refrigerate the assembled parfait for at least 30 minutes before serving (or up to 4 hours). This chilling time allows the flavors to meld beautifully and prevents the granola from becoming soggy too quickly. Serve directly from the bowl for a communal presentation, or serve individual glasses. For the best texture, I serve it within a few hours of assembly—the granola stays delightfully crispy that way.