My new favorite apple cake—no sugar, no flour!

Ingredients:

• 3 medium apples (10.6 oz / 300 g)
• 3 large eggs (5.3 oz / 150 g)
• A pinch of salt
• ½ tsp vanilla extract (0.07 oz / 2 g)
• 4 tbsp cocoa powder (0.85 oz / 24 g)
• ½ tsp baking powder (0.07 oz / 2 g)
• ½ tsp psyllium husk (0.07 oz / 2 g)
• ½ tsp olive oil (0.07 oz / 2 g)