Step 1

Preheat oven to 250 degrees F (120 degrees C). Lightly grease a 10x15-inch jelly roll pan.

Step 2

Combine egg white and vanilla in large bowl; beat until frothy. Add almonds and toss to coat. Pour almonds into a mesh strainer to drain excess liquid, 5 to 10 minutes. Return strained almonds to the bowl.

Step 3

Stir white sugar, brown sugar, cinnamon, chili powder, and salt together in a bowl. Sprinkle sugar mixture over almonds and toss to coat evenly. Spread coated nuts evenly onto prepared jelly roll pan.

Step 4

Bake, stirring every 20 minutes, until the seasoning clings to the almonds, about 1 hour. Allow to cool completely before storing in an air-tight container.