1. **Prepare the Mixture:**
– In a bowl, mix the diced apple, Greek yogurt, honey (or maple syrup), and egg until well combined.

2. **Add Dry Ingredients:**
– Stir in the flour, baking powder, cinnamon, and a pinch of salt until you have a smooth batter.

3. **Microwave:**
– Pour the mixture into a microwave-safe mug or bowl. Microwave on high for about 1.5 to 2 minutes, or until the cake is set and a toothpick comes out clean.

4. **Cool and Enjoy:**
– Let it cool for a minute before enjoying it warm. You can top it with a dollop of Greek yogurt if desired.

### Nutritional Info:
– This cake is roughly around 180 calories, depending on the specific ingredients you use.

Enjoy your quick and healthy apple and cream cake!