Preheat the oven to350°F. Combine graham cracker crumbs, butter, sugar, flour, and salt in a bowl.
Spread out evenly on a sheet pan lined with parchment paper and bake until golden brown, 10 minutes.
Let cool completely, then break up into chunks.
To assemble parfait, layer graham cracker crumble and your favorite choice of yogurt in a mason jar, or in a small cup. Add fresh fruit to complete the meal.
Serve immediately.