Ingredients

1. Heat the oven to 250°F. Line a sheet pan with parchment paper or a silicone baking mat.
2. Combine the milk powder, flour, sugar, cornstarch, corn powder, and salt in a medium bowl. Toss with your hands to mix. Add the melted butter and toss, using a spatula, until the mixture starts to come together and form small clusters.
3. Spread the clusters on the lined sheet pan. Bake for 20 minutes. The crumbs should be sandy, but still clumped together at that point, and your kitchen should smell like buttery heaven. Cool the crumbs completely. The crumbs will keep in an airtight container in the fridge for up to 1 week or in the freezer for up to 1 month.