Melt butter (5g) in a bowl.
Slice apple (160g) into 5mm slices.
Mix apple with lemon juice (3ml), cinnamon allulose (5ml), and cinnamon sugar (2g).
Bake apples for 10 minutes on baguette mode.
Mix nuts with butter (5g) and salt.
When apples are done, sprinkle nuts on top.
Bake nuts at 200°C on classic mode for 8-9 minutes.