Overcrowding the pan and/or using too low of an oven temperature are the most common reasons for kale chips not getting crispy. Make sure to spread the kale in a single layer and bake at a sufficiently high temperature.
Achieving perfectly crispy kale chips requires a balance of proper preparation and baking technique. Here's a breakdown of why your kale chips might be falling short:
Overcrowding: When kale leaves are packed too closely together on the baking sheet, they steam instead of roasting. This is because the moisture released from the leaves cannot evaporate properly. The result is limp, soggy kale chips.
Temperature: If the oven temperature is too low, the kale will dry out slowly, leading to a chewy texture rather than a crispy one. A higher temperature helps to quickly evaporate the moisture and crisp the leaves.
Moisture: Excess moisture on the kale leaves before baking can also hinder crisping. Even after washing, ensure the kale is thoroughly dried before tossing with oil and seasonings.
Oil: Using too much oil can also prevent crisping. The kale should be lightly coated, not saturated.
To fix this, ensure you spread the kale in a single layer on the baking sheet, giving each leaf enough space. Preheat your oven to around 350°F (175°C). Make sure your kale is completely dry before baking.
Massage the kale leaves with olive oil and seasonings before baking. This helps to evenly distribute the oil and break down the kale's tough fibers, resulting in more tender and crispy chips.