Rhubarb Preserves | English-Style Sugar-Free Air Fryer Jam

Spread the sliced rhubarb stalks in the air fryer basket and roast at 180°C / 355°F for 10 minutes, until the edges are lightly browned. If you do not have an air fryer, roast them for the same amount of time in an oven preheated to 180°C / 355°F.

Transfer the roasted rhubarb to a saucepan and stir in the sweetener, lemon juice, and grated ginger. Simmer over low heat for 15 minutes, until thickened.

Gently mash the mixture with a fork, leaving some texture; it does not need to be completely smooth.

Fill clean jars with the hot preserve and close the lids tightly. Let the jars cool at room temperature.