Air Fryer Pineapple Walnut Cake

Ingredients

• 1/2 box (8 oz or 250 g) yellow cake mix
• 16 oz. (450 g) canned crushed pineapple, undrained
• 1/4 cup (60 g) butter, melted
• 1/4 cup (25 g) shredded coconut or coconut flakes
• 1/4 cup (30 g) chopped walnuts