Preheat the Oven:
Preheat your oven to 180°C (350°F). Grease a round cake pan (about 22 cm or 9 inches) and line the bottom with parchment paper for easy removal.
Prepare the Apples:
Peel, core, and slice the apples into thin wedges. You can toss them with a bit of sugar and a sprinkle of cinnamon if you like.
Mix the Batter:
In a large mixing bowl, combine the plain yogurt, granulated sugar, and the dash of rum. Whisk until smooth.
Add the eggs to the yogurt mixture and whisk until fully combined.
Incorporate Dry Ingredients:
Gradually add the flour to the wet ingredients, stirring gently with a spatula until just combined. Be careful not to overmix; it’s okay if there are a few lumps.
Add Apples:
Gently fold in the sliced apples, ensuring they’re evenly distributed throughout the batter.
Transfer to Cake Pan:
