01 - In a medium bowl, whisk together the almond milk, chia seeds, maple syrup, and vanilla extract until well combined. Let the mixture rest for 10 minutes, then whisk vigorously a second time to break up any clumps that have begun forming.
02 - Cover the bowl tightly and refrigerate for at least 3 hours or overnight, allowing the chia seeds to fully absorb the liquid and thicken into a creamy pudding consistency.
03 - Combine the diced strawberries, lemon juice, and sugar or maple syrup in a separate bowl. Toss gently to coat evenly and set aside to macerate while you prepare the crumble topping.
04 - Preheat the oven to 350°F. Line a small rimmed baking sheet with parchment paper and set aside.
05 - In a mixing bowl, combine the gluten-free oats, almond flour, melted coconut oil, maple syrup, and salt. Stir until the mixture resembles a coarse, crumbly texture. Spread it evenly across the prepared baking sheet and bake for 12 to 15 minutes, stirring halfway through, until the crumble turns a deep golden brown. Remove from the oven and let it cool completely.
06 - Spoon a layer of chia pudding into the bottom of each serving glass or jar. Add a generous spoonful of the macerated strawberries over the pudding, then sprinkle with the cooled crumble topping. Repeat the layering once more, finishing with an extra dusting of crumble on top.
07 - Serve the parfaits immediately for a contrasting warm-cold texture, or cover and refrigerate until ready to enjoy. The assembled desserts hold well in the refrigerator for up to 24 hours.