Preheat your oven to 450°.

Peel the onion and slice into 3/4" thick rings. Separate all of the rings into individual pieces and place them in a bowl of water while your prepare your remaining ingredients.

Using three separate bowls, add the flour, 2 tsp. chili powder, 1/2 tsp. garlic powder & 1 tsp cumin to the first bowl. In the second bowl, whisk the egg and water mixture until light and airy. In the last bowl, add the Panko breadcrumbs with the remaining spices and mix until they are well incorporated.

One at a time, take an onion ring from the bowl of water and coat first in the flour, then in the egg and lastly in the Panko break crumbs. Please the coated onion rings on a baking pan.

Once all of the onion rings are coated, give them a quick spray of non-stick olive oil spray. Bake at 450° for 20-25 min until crunchy and golden brown. Rotate the onion rings half way through baking.

Serve immediately.