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Preheat your oven to 350°F (175°C). Line a large baking sheet with parchment paper to prevent sticking and ensure easy cleanup.

Carefully slice the large onion into 1/4 inch thick rings. Aim for uniform thickness to ensure even cooking.

Gently separate the sliced onion rings. Discard any very small or broken pieces that might burn easily.

Arrange the separated onion rings in a single layer on the prepared baking sheet, ensuring they do not overlap. This allows them to crisp up properly.

Sprinkle a generous amount of grated Parmesan cheese evenly over the onion rings. The cheese will melt and form a crispy coating.

Bake in the preheated oven for 15-20 minutes, or until the onion rings are golden brown and crispy. Keep a close eye on them during the last few minutes, as they can go from perfectly crisp to burnt quickly.

Remove from the oven and let cool slightly on the baking sheet. They will crisp up further as they cool. Serve immediately and enjoy your homemade onion ring chips!


Preheat your oven to 350°F (175°C). Line a large baking sheet with parchment paper to prevent sticking and ensure easy cleanup.

Carefully slice the large onion into 1/4 inch thick rings. Aim for uniform thickness to ensure even cooking.

Gently separate the sliced onion rings. Discard any very small or broken pieces that might burn easily.

Arrange the separated onion rings in a single layer on the prepared baking sheet, ensuring they do not overlap. This allows them to crisp up properly.

Sprinkle a generous amount of grated Parmesan cheese evenly over the onion rings. The cheese will melt and form a crispy coating.

Bake in the preheated oven for 15-20 minutes, or until the onion rings are golden brown and crispy. Keep a close eye on them during the last few minutes, as they can go from perfectly crisp to burnt quickly.

Remove from the oven and let cool slightly on the baking sheet. They will crisp up further as they cool. Serve immediately and enjoy your homemade onion ring chips!
